Well just to let you know that David Z also had cams, headers, lighter flywheel, and a few other mods done to his engine.
As far as the Sho-Shop, they tricked out the motor a bit with excrune hone the intake more and opeaning the 2nd daries along with some other trick of the trade. That is why there getting 20+ more HP then everyone else who's doing it by themselves.
I feel its more then just slapping on SVT heads and a 3.0 block like eveyone's doing. Remember you get what you pay for and at the Sho-Shop your PAYING for experince......
But thats just my 2 cents and I'm sureI'm going to get flamed on :rolleyes:
