Holley efi 550-601
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Joined: Mar 2012
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From: Severn, MD
Car: 1990 Iroc z-28
Engine: 350 TPI STOCK
Holley efi 550-601
Hi, wondering if someone have a copy of installation instructions for a Holley HP ECU Part # 550-601. A got one used for a really good price but did not come with instructions. I looked everywhere online and could not found instructions. Thanks in advance.
Joined: Feb 2017
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From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Holley efi 550-601
Try here: https://www.holley.com/support/resou...Fuel_Injection
Most likely this: https://documents.holley.com/techlib...10555rev17.pdf
Most likely this: https://documents.holley.com/techlib...10555rev17.pdf
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