Can you have too much head for a strictly street HP motor. Here is my motor build-400 stroked to a 471, 586 solid roller cam with 114 degree LSA to support a Dual quad fast efi system, tremec 5spd 4.30 gears all rolled up in a 63 valiant. I am considering a set of 440 source cnc heads which they say flow 320 cfm. Since this car will probably not see any track time, will all that flow possibly hurt my bottom end while doing more cruising time than top end time. Would I be better off just getting a set of non ported stealth heads and just gasket match the intake and heads for better bottom end. I forgot to mention the compression will be right around 11:1. This is a fully tubbed and caged car. I will probably have to change my gears a bit since my rear tires are only 29" tall. Thanks All
