I currently bought a KB 2.1, and ive been reading about the gains with a PI swap, i was wondering if just doing a PI head swap would make a big difference with the blower or is there more to it?
i wouldn't twin screw a stock block 10.5:1 compression car. If your going to go 400/420+ might as well do rotating assembly, then you can do PI heads maybe a blower cam and some dished forged pistons
Ummm...is the KB you bought for the 96-98 Mustang? I tried to order one in December and was told they discontinued the blower due to manifold problems. WTF?!
Oh, and the KB will get you way more HP than the PI swap.