[Jeff Lee]

I had a '68 Formula S (actually had two) that had a transplant 440 with the manual steering and brakes like your M code car. This was a 4-speed though. It had factory exhaust, an Offy intake w/ a Holley 800 DP and a .484" Purple Shaft (dang, remember when Purple Shaft cams were the hot thing? .474" Hemi grind, .484", .509" hydraulics then the .528", .557" and the ultimate was the .590" flat tappets). The Barracuda had a 4-speed and a Vertical-gate shifter with a metallic puck disck and there were 3.23's in the 8 3/4.
You couldn't slip the clutch off the line like you would in normal street driving. You almost had to pop the clutch at above idle and let it roll out. But if you tried to engage it slowly, the back of the car would shake so badly it sounded like you were going to pop the back window out!
Never took that car to the track but I have no doubt today that it would have gone 110 or so. Oh, and it was painted with fogged in accents like a SS/A 'Cuda of the time. Yea, kinda dorky...