Ive been doing some research because I am wanting to do it as well. 150 is a deal on the heads and if your going to do the heads I'm pretty sure the intake you have now won't fit them so you pretty much have to. But in all you will get a 40 to 50 hp gain out if it. I'm hoping the guy I've been talking to comes through for 200 for the intake and heads because then all I need are the gaskets lol
Re: soo many questions need serious help for my decision
If you can get the heads for that cheap and they are in good condition, then yes. The kit for the intake manifold is $350 then the heads for $100. Thats awesome. Just remember that it can be pricey to have them installed.