I havent been on here in a while. I just have a few questions if anyone can answer them. Id like to stick with the V6 in the 86 LS and all. Was wondering what some 4.3 Vortec heads from the 90s blazers might do me for horsepower gains, im sure a decent one? Anyone got any ideas on the price for some heads as well? I may one day upgrade to the 350 engine though.