I'm in the middle of a 350 buildup, and just wondering what kind of power to expect from some stuff I'm doing to the engine. I threw in a zz4 cam with Isky valve springs on stocker heads (and yes, I'm pinning the rocker studs). I had the heads decked 0.010, Flowmaster 3" catback and smog pump removed. I've got a built turbo 350 behind it with about a 2000 - 2500 rpm stall (can't remember), 3.23 gears. I was thinking this should be good for high 13's, but was looking for opinions and suggestions on anything else. I can't afford much more, but I was thinking of porting the heads, how worthwile would this be with this combo?