Still sort of up in the air. I have sorta been endlessly researching how each cam spec effects performance. I really don't know how much lift is to much lift or if I should be looking at cams with more duration or less duration. I just really dont want to "over cam it" and decide on something that's to big. While I do want to drive my duster, I really want this engine to hit at least 400 ponies and if i have to sacrifice some drive- ability, thats okay. I have also begun trying to understand the world of aluminum heads and trying to decide what head is going to fit my needs. Its all very confusing.