Quote Originally Posted by GreenMonster View Post
How much HP do you think i can squeeze out of the LIL 5.3? NNBS 90mm intake with edelbrock 90mm tb, ported 706 heads, bigger cam, current cam is a 224/230 581/588. I want to hit 12's on motor... other mods will be a 3600 stall circle d and 4.10 or 4.30 gears...
For a realitively heavy vehicle, I think you would be better off with the cam you have vs. a "bigger cam". Heck, you may even see a gain in e.t. going with a smaller cam?

One of the car magazines did a cam comparo with 7 cams (the stock one and 6 grinds from comp). The smallest cam from comp smoked all the others in AVERAGE Hp and Tq, except the biggest cam. The biggest cam had slightly higher average #s due to its very high peak #s. In the useable street engine RPM range, say 2500-6000, the smallest one shined.

I was blown away, but the article made a lasting impression in my mind.