Where can I find headers to fit my truck? Also, for those of you that have/had a vortec 350, will the valve train for the 350 also work in the 4.3?....I mean the 262 is essentially a 350 with two cylinders cut off. I want to increase the rocker ratio to 1.8:1 or 1.9:1 with a little stiffer springs. I just need to know where to look for this stuff. Thanks.