baker6pak Posted February 9, 2024 Author Posted February 9, 2024 12 hours ago, MCfan said: Welcome, Kevin! Great to know of another ‘70 BB 4-speed survivor! A couple of questions if you don’t mind: Which Muncie do you have (M20, M21, M22)? What rear end ratio do you have? What brand of tube headers and are they full-length or shorties? Thanks. Not at all, this is actually my third big block 4 speed 70 monte. All 3 were the same, M-20’s, 3.31’s posi rear 12 bolts. I currently have hooker headers on it. Long tube with the bigger pipes. I believe they are 1& 7/8 this. I might be misremembering. Thinking about switching to some block hugger headers for more clearance, 1 the steering column and 2 brake fluid distribution block, both are very tight with these headers. 4 1 Quote
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