First of all, thank you to everyone for having patience with me and my questions and giving me truly helpful answers and input. I've decided that I'm definitely doing the headswap once springtime rolls around, but I had a question about the difference between two types of cylinder heads and the effects of porting/polishing on each. I was originally looking at the 'P.I.' heads (http://www.steeda.com/store/~catalog/FR2ValvePIheads.htm), and I know what to expect performance-wise with porting/polishing, new cams, intake, etc. But now I'm also looking at the FRPP/SVO 4.6L GT Cylinder heads (http://www.steeda.com/store/~catalog/46gtheads.html). These are obviously more expensive, but what I'm wondering is how much more of a power gain I would get with these. It says they're perfect for custom porting/polishing and they add 35HP without it, so I'm curious as to whether or not these heads would be worth the extra moneys over the P.I.'s. I've heard that by switching to the P.I.'s on my engine, the horsepower would be more than a 99+ GT with the same setup due to the higher compression rating and flat-topped pistons. So is it even worth it to get the FRPP/SVO's or should I just get the P.I.'s and port and polish them? Please help. Thanks as always everyone. Peace.
--Adam
--Adam