My T-5 Died Today....

[showtire]

I may be on another planet based on the text I have been reading, but here goes for what its worth: I have a 66 Ford Galaxie 500 XL Convert. She is stock with the 390, but has the Edlebrock4-bar & manifold. The original tranny was a slush box C-3. I had it replaced with a C-6 from a pick-up truck and yes it was hard to find. My mechanic is a racer and mustang lover and found the C-6 for me and actually wanted to keep it himself after he found it. POINT: He said I could rev my 66 to blow point, drop her in low and would twist the drive shaft off or blow the eng before, I hurt that C-6. That was about 10 years ago and she still purs. Thing is, she is an auto and I have never raced her, but my mechanic said it would be the same on the track for a manual?