Weavsvet wrote:


I've asked this question before and the answer usually was I don't need different headers. But I also included the phrase "should I get 1 3/4 instead of 1 5/8 like I have now"". But getting 1 5/8 headers to match up with the size of the AFR port may be difficult. To me it would seem having the exhaust port match the header would be just as important as the intake matching the head. But what do I know.........

I also asked the question about the intake being the problem and the answer was that it was not because of one of these pressure readings. I'd have to go back and find which one though. I may be mistaken but I swear I read on AFR's website that they recommend the LT4 Air Gap as the preferred intake with these heads I have.