Join Date: Apr 2007
Location: SF Bay Area, CA
Re: 429 CobraJet on C8VE heads?
Ford found something like 28 extra hp with that intake on the 460 Marine engines, and so the Holley square bore version was used on all 460 Marine builds. The bigger question is whether it's the correct choice for your engine/vehicle application; just because it produces more horsepower in a given engine combo doesn't neccessarily mean it won't slow your car down at the track, for example.