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Description
Holley HP EFI ECU and Harness Kits 550-604MPFI HP ECU AND HARNESS KIT Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine
MPFI HP ECU AND HARNESS KIT
Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.
Features:
- Optional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel
- Eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies
- Eight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
- Integrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors
- Internal data-logging standard with a huge 2GB of memory
- 4 Stage progressive nitrous control
- Turbo boost control
- Integrated water/methanol injection control
- Self-tuning fuel table strategy greatly simplifies tuning process
- Individual cylinder fuel and spark control allows you to unlock your engine’s potential
- Works with 4, 6, 8 cylinder engines
- Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
- Advanced idle, closed loop, and enrichment strategies allow for very stable operation
- ECU is fully potted and can be mounted in the engine compartment or interior
- Sealed automotive and marine grade connectors
- Allows for use of common OEM sensors as well as customer sensor calibration input
- Ignition Plug and Play with GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process. Custom settings can be configured to allow many other applications
- 1-5 Bar MAP sensor capability
- Two channel knock control sensor Inputs for both one or two wire knock sensors
- Dedicated fuel and oil pressure inputs
- Controls both stepper and PWM Idle Air Control (IAC) motors
- Speed density, Alpha-N, or combination fueling strategies
- 4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use
- 4 Stage nitrous oxide control
- Fully featured nitrous control eliminates the need for a separate nitrous controller device
- Can be configured “Wet” or “Dry” with closed loop feedback
- Progressive control based on time, RPM, or boost, requires part # 554-111
- Lean or rich safety cutoff
- Full timing retard/control configurability per stage based on RPM or time
- Integrated Water/Methanol injection control
- Uses Holley Water/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water/Meth flow as a percentage of fuel injector flow for Water/Meth tuning precision unmatched in the industry
Application
-
Universal
Specs
| Brand | Holley EFI |
|---|---|
| Emission Code | 3 |
| Ignition Type | Coil - (No Timing Control) |
| Ford TFI | |
| GM HEI Small Cap | |
| Holley Dual Sync Distributor | |
| Injector Connector | Jetronic / Minitimer (Bosch) |
| Product Type | HP EFI Kit |
| Part Number | 550-604 |
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Beauty as an assassin? Yes, please.
Format: Kindle
I am a sucker for Beauty and the Beast retellings, especially when there is fae magic involved.
This story is a stand-alone and can easily be read and enjoyed as such, but the story in the background is waiting to unfold.
Briannis is a lost woman trying to find her place in the world. She happens to be an excellent assassin, but only when there is a good reason behind the job. She runs afoul of the law and is coerced into killing the King of Fae.
Their tale begins with much violence and mistrust. They reach an understanding that turns into more as they are stuck inside the Keep thanks to the murderous roses encasing the building.
Some of my favorite quotes
"This is not very..."
"Proper?" His low drawl curled around her guts, sweet and syrupy. "I thought you'd realise by now that I'm far from a
proper man, Miss Iavi."
She swallowed hard. "You're... you're not making sense. You don't even like me."
"I don't?" he said dryly.
"I tried to kill you! Three times in a row!"
"You may want to leave," he added, barely even moving his lips. His voice was low and raspy, little more than a growl; the words came out with laboured breaths. "Before I no longer let you."
"You can’t just act like you didn’t have your fingers inside me a few hours ago! That’s not something you talk about over strawberries!"
He took a sip of tea. "You’ve had your knife inside me too."
"That," she said exasperatedly, "is something extremely different."
"In the sense that I’d be happy to repeat one incident and not the other, yes." He smiled at her over his teacup, shameless...
"You make a terrible king out of me, Briannis Iavi."
"Are you very sure? There’s no need to be polite if you—"
"I’m not being polite!" A trembling laugh escaped her. "I have no intention at all of being polite to you!"
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Reviewed in the United States on August 25, 2023
★★★★★ 4
So cute
Format: Kindle
I really enjoyed this retelling! This read was a quick read, and had all the love you need in it! I love the King and the assassin. Cannot wait to continue this series!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2023
★★★★★ 3
Love how this author writes, BUT..
Format: Kindle
I wanted to love everything about this book. I had this book release on my calendar. I read it the moment it became available. I’ve become a big fan after Marshall’s Blood and Bindings series, and I think she does a beautiful job writing complex, thoughtful characters.
BUT.
Spoilers below-
This book missed the mark in two important ways for me. The first is the intro - this “very proper lady assassin” - first of all - we are supposed to believe that SHE is who the most powerful man in the city chose to assassinate his mortal enemy? Sure. She had killed some unsuspecting guys. But the leap from there to a Fae king with magic? And when she goes to do it- she does it by blindly bumbling around his castle and walking into the room where he is and trying to stab him in the middle of the day? I am willing suspend a lot of disbelief for a good story, but that was a major stretch that made the whole premise of the book feel contrived.
And second… a whole dead side of his body? Like … dead. As in.. she smelled the rot. Saw the skeleton and dead mouth and skin. And then … had sex with it?
Um. I’m no prude but … yuck. I couldn’t get past the necrophiliac imagery and visual, and it was a major turn off for me.
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Reviewed in the United States on August 16, 2023
★★★★★ 5
Fantasy Romance
Format: Kindle
✨’Would it truly be that bad?' he muttered, and for the first time since she'd awoken, there was a hint of humanity in his quiet words, a crack in that jaundiced shield. Warm breath brushed past her scalp. His arms didn't let go.
'If you ended up here with no way to leave?'
⭐️⭐️⭐️⭐️⭐️
🌶️🌶️🌶️
Fantasy Romance 📖
🥀Oh, these moment with our MMC reach deep for me and make me love him all the more! Curse Of The Thorn King is @authorlisettemarshall’s new and utterly enchanting Beauty and the Beast retelling, and I absolutely loved it! This steamy, forced proximity, enemies to lovers story is the first installment in the new Wayfarer Fae series and I fell hard for these characters!
✨I thoroughly enjoyed the unique flower magic systems, the assassin plot, all of fun additions of Lady Lockwell's Handbook of Etiquette, and how that factored into the story. The flirtatious and stabby banter between the two main characters had me grinning like a complete fool as the romance developed….all while experiencing the moments that made my heart ache and even break for our MC’s as the plot unfolded.
🥀As I read Curse of the Thorn King I was consumed by that quintessential balance of angst, tension, steam, COMPLETE frustration (in the best way) emotional turmoil, and swoon worthy moments that my heart has come to associate with the magic of Lisette Marshall’s writing. This authors always makes me feel allll the feels ✨✨It is no surprise that I intimately drawn to these characters and their story.
✨I highly recommend Curse Of The Thorn King to fantasy, fantasy romance, and romantasy readers.
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Reviewed in the United States on August 15, 2023
★★★★★ 5
5 ⭐️ / 2.5-3 🌶️
Format: Paperback
I do not know where my original review went so I’m reposting
Includes:
- Beauty and the Beast vibes, but with a Fae twist
- Enemies to lovers
- Slow burn
- Forced proximity
- Standalone HEA
There are now two books I love that have opening sentences that reference bars of soap.
@authorlisettemarshall ‘s books never disappoint me and this standalone is no exception. I absolutely love her writing style, the unique magic systems she uses, as well as her ability to convey such vivid details regarding things like clothing and places. It really helps someone like me (who isn't a good visualizer) immerse myself in the story.
It also MUST be said that Lisette has really mastered the art of writing the slow burn for me. With fun characters and banter, she sprinkles in little breadcrumbs here and there that help with the romance build up and, baby, I'm hot on those breadcrumbs' trails just EATING them up.
TLDR; Put this on your TBR.
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Reviewed in the United States on September 29, 2023