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i just installed pacesetters on my car. i have been reading ya'lls comments on their installation to get a jump on possible problems. great comments!
when i got my headers the tubes were round, but the exhaust head ports were more oval with the ends squared off. i used the old metal gaskets as a template to grind the header ports & cut out the new gaskets. did you guys know how much loss in flow you have by just installing the stock headers? i measured roughly 15% of area is covered by the stock header ports.
for performance, it is very important to match the port to achieve as much smooth flow as possible. some of you may say this doesn't matter, but i'm 50 years old i own cars that run v6 to big block 455 olds. it does matter especially on smaller engines!
when i got my headers the tubes were round, but the exhaust head ports were more oval with the ends squared off. i used the old metal gaskets as a template to grind the header ports & cut out the new gaskets. did you guys know how much loss in flow you have by just installing the stock headers? i measured roughly 15% of area is covered by the stock header ports.
for performance, it is very important to match the port to achieve as much smooth flow as possible. some of you may say this doesn't matter, but i'm 50 years old i own cars that run v6 to big block 455 olds. it does matter especially on smaller engines!
