Edelbrock aluminum heads

ir3333 said
I agree...we spend all our time driving under 3000 so that's were you want power.

Unless your deep into the pedal all time to do normal driving your engine already makes an excess of under 3000 rpm power.

ir3333 said
I have also used the old .474 purple shaft with about .238 duration and like all big cams it was a dud on the street. Those cams make power at high rpm and are a necessity for 12 seconds at the strip, but require hi stall converters and gears which are unpleasant for normal driving.

There's a lot of cam choices between stock and the one's your posting, there a lot of streetable cams to pick especially if you add it with good heads to make streetable power. Bigger cams can also and tend to add in the 2500-4500 rpm range not just on top, it generally takes a very big cam to make less torque at 2500 rpm then stock low power cam.