1, I don't agree with that, cause the person may not have the money for any other heads. 2, They may want the experience of doing it, and seeing what the improvements are. 3, They may want to try another way of porting for testing their own theory. That's what I did on mine. It depends on a number of things though. Like where they want the performance at, at what rpm's. But, I will agree, if you have the money to get a pair all done, that would also be a good way to go, especially, if you didn't have the time, or tools to do them.

time for a new forum to visit. when they sold sr.com it went down hill fast. no more forum just a cheap site selling junkie cars. the canadians killed hr.com. mods are real pricks. as with any site...
Where is everybody?