a 3.4 pulley is really pushing it. a ic would be best.

i had a rocker, 3.4 l67. the l36 top swap with rockers and the stock pulley would have blown the l67's doors off.

i tried the 3.4 on the top swap, i was getting tons of KR at part throttle. and im talking 1/4 throttle. 6º kr