Hello Everyone Are there anyone running the Mickey Thompson 400-455 headers reproduced by the Buick GSCA ? Are there any performance advantages to using them? Also has anyone run these in a 4 speed car. My car is a 70 Stage 1. I'm also concerned about overall fit. There taking orders and I was thinking about sending a deposit for a set. Thank You Bob
I have ran them for years and love them. Had original MT's and am now using the GSCA repop's. Fit is good. Center bolt is tough to get in but not impossible.
I've had the repo's in my 70 4-speed car since the mid 80's. I hate the sound. They're coming out this summer. Fit is fine, although they do scrape the ground sometimes.
MrGranSport, I see your signature and you apperantly own a parts shop, allow me to cut to the chase, do you sell big Buick flywheels? I'm looking for one meant for a 455. thanks
