Cylinder Head ???

[Fostang]

I can get another deal on a set of heads kind of like the one I got with the holley systemax heads. The only thing is that I'm not sure how well they would work. Here is the info that I've gotten from the machinest that made them. They have hardened seats with bronze guides, 58cc fast burn combustion chambers,3 angle valve job, new springs, locks, screw in studs, manley valves. Midly ported and polished. But my concern is with the size of the valves. The intakes are 1.90 but the exhaust are only 1.50. How well will a car with lots of intake but low exhaust run? They have zero miles on them and the machinest is trust worthy.

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67'fastback-Edelbrock carb,intake,cam,valve springs.Rhode lifters, CompCam rocker arms, windage tray,cerama coated headers,dual flows with H-pipe, modded c-4,tci stall converter,perma cool electric fan,aluminum water pump,griffen aluminum radiator,accel 8.8 cable,wide cap distriburator,magnetic pick up,v-matic hurst shifter,edelbrock performer nitrous, carter electric fuel pump,ignitor coil,solid motor mounts,magna racing suspension,poly urathane bushings,under rider traction bars, comp. eng. s