Rock Crusher: M22 close ratio Muncie. Called that because the straight cut gears sounded like they were crushing rocks.


Have to remember that in 1970 tires were just starting to become more than "even dangerous in the driveway" and with 400+ cubes going "up in smoke" was a quick way to lose.


Personally have never understood bracket racing & found "Fast & Furious - Tokio Drifting" hilarious.


So back in the day if you wanted to win in the higher classes you had to have absolutely no respect for tha car. Period. Slide the clutch off the line to keep the engine at max torque while transferring the weight back (used to love the way the Ramcharger's Dodge would lift straight up in the air on takeoff, those guys really knew how to tune a suspension, you could see the rear tires distort...)


Back then we didn't have fuel injection (well not in stock class, had this '67 Camaro at GMI...) so a poorly controlled leak and no flow baffles to enhance torque, just an iron or aluminum manifold. When everyone salivated for Holleys, I had a Quadrajet, a 800 cfm + Quadrajet but to go fast you had to keep the flow near constant so the air valve did not shut (and setting up the air valve spring in a QJ is an art form).


This meant the right foot stayed on the floor & if you blew a clutch or trans, or rearend or even snapped a driveshaft occasionally, that was the price of winning (why scattershields were a requirement in the interesting classes).


Used to paint a white line on driveshaft and axles to be able to see the amount of twist.


In these days of automagics and "breaking out" you just do not understand what it was like back then.


In any event that was in the days before I turned 21 and eligable for real racing SCCA style with a B/P fuelly 63 vette coupe I paid a grand for. Had a Holley at the time but I swapped for a 65 Rochester and "fixed" to the tune of about 900 cfm.


Oh well, now a days I just like interesting rides and when I find one, make it fit what I think it should be. That the XF was designed for Gus Grissom is fixable. Like the six speed but prefer not to drop one.
Nothing a 2.67 rear gear won't cure.