I have a 69' 327 out of an Impala that I'm going to put in my 67' Malibu. I was thinking of using the GM Iron vortec heads. These seem like a bargain for 500 bucks a pair. I know i'll need a vortec intake also. I was wondering about which cam to use.This is just going to be a fun cruiser with midrange torque the goal.The powerglide is staying also.