[Stan Weiss]

Originally Posted by b-man

Exactly what mine has in it.

So it’s an engine that is cammed for low speed efficiency and still runs readily up the 6600 redline because it has plenty of head flow.

Just adding headers gets you up to 480 horsepower.

Originally Posted by Stan Weiss

If in fact these heads flow the rumored 300 cfm. Then IMO someone replacing a stock head without doing any other changes will not be happy.

Stan

Above is my original post. I didn't say the DCI heads could not be made to work. But how many stock head Pontiac have a cam like the LS3? High lift short duration.

Stan