As far as replacing the excellent factory cast iron intake with a Performer, waste of time/funds. You are putting a smaller intake on the engine so no power waiting for you anyplace. So like the millions of folks before you who own a Pontiac or other Detroit based V-8 engine about all you've done best case scenario is spend a couple hundred bucks to take 27 pounds off the front of the vehicle......
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran!
https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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