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Had a local pro build a 400 for pump gas street driving that after 8k investment it came off the dyno at 191 hp, 262 tq. Didnt get much of an answer other than the quadrajet is a junk carb and should use something else.
Here's what they put together.. 1971 YS 400, .060 pistons, crank .010 with factory rods. #96 heads with new seats, surfaced and .065 head gaskets. Comp checked out to be 155 psi. Bullet hyd roller camshaft 215/220 dur at .050, 106 degree, hyd roller lifters with new pushrods. Springs, studs and retainers in the cam kit. 1.56 roller rockers. Factory cast iron intake, Ram Air manifolds, new HEI dist plugs and wires. Not sure where cam was degreed in at or total timing. Now maybe its just the carb I supplied that was junk and need to find a better quadrajet. Big question is in my head, was this cam a good match for the compression? Thanks in advance for any thoughts! |
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