they port and polish the valves and ****...to make the heads flow better....and no there is no aftermarket heads for our cars...they are all "PI" just p&p.....and with what matt said....send BOOMER a pm...he really good!!
I have alabama cylinder heads, AKA patriot Performance, and well the ports were up to a 1/32 off. They bought Fords bad castings, which they had 450,000 or so beause of a flaw in the "template". So PP or Abama clyinder head bought them to port and polish. And well they suck ass....
I have seen his car. And well personally I think he would have been better off with a Livernois head or similar. I really dont think that ACs car is all that fast on motor. And he wont go to the track with it.
Also didnt you see that He is putting a BBC in it? I am sorry but I dont look up to AC at all. He would have had a nice set of heads and numbers if he went any other way than patriot. Infact i bet if he pulls the heads off, he will find out that the ports are offcenter too.
ever relized they are dirt cheap too? PP bought the heads so cheap they can sell them so cheap.