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Sicklajoie · 04-07-2011, 10:07 PM

Swapped out the Holley 750 dp for a Holley 670 Street Avenger. New plugs and played with the timing. She runs like a raped ape now!

04-07-2011, 10:07 PM	#2073
Sicklajoie The Niner Join Date: Nov 2010 Location: Broad Brook, CT Posts: 2,515	Re: What did you do to your truck today! Swapped out the Holley 750 dp for a Holley 670 Street Avenger. New plugs and played with the timing. She runs like a raped ape now! __________________ "A good racer is one whose head is in communication with his balls." - Richie Evans 1970 C/20 - 402/TH400/3.54s - 74K miles 2003 GMC Sierra 2500 - Wheatland Yellow Niner Progression Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=697183 Classic Trucks article: https://www.motortrend.com/features/...et-c20-driven/