I bought a car that has ALOT of $$$ in it. 408 SBC, full susp front to back, team G intake, 875 carb, etc.. I was told the heads were dart heads and I looked and looked for a part # before I bought the car.. Well come to find out there pro comp 210cc heads. I just sold a race car that I built a BBF with ported Pro comp heads and had real good luck on. that motor car ran VERY well... I have read a bunch of stuff saying the SBC pro comp heads are pretty damn good and the casting is alot better then the ford heads... I guess my question is if anyone has had any luck with them and maybe some times/combos...