I'm curious if anyone is running mid 10's with these headers? I have a built a 650HP motor and I'm wondering if the headers are going to choke me off that much or not? I obviously should have some bigger tubes but wanted opinions. I have a brand new set of the MT 1 7/8 now I can use but I'm wondering if its worth the $ for 2" or even 2 1/8". Thank you!
My car,all steel,in 1993 with 3 inch pipes and M/T headers ran a best of 10.22,so yes,its very possible to go into the mid tens with M/T headers.Those same pipes and headers are in my new 70 GS.Bruno.
