Hi-way driving is out with the 3600TC anyway.
Nice car. I had a 73 mordoorteener. I thought it was a tank. At 3575, yours is about half what mine weighed.lol
My stock convertor was running 3200 rpm at 65mph and with new convertor running 2600 rpm.This new convertors are a dream,it even swallows up the hard shift from 1-2 gear(shift kit installed) like a stroker swallows up a big cam and sounds docile !
Now something I have not told you'll.
I bought this 9 1/2 dynamic convertor used !!!
and it really is for my application but bought it because it is going to be for my application soon!
here is what the seller told me: It was built for my combo - 70 challenger, stock weight around 3500 or 3600 lbs. Rear gears are 3.91. Engine is a 360, stock valve 974 smog heads, mopar perf 284/484 cam, performer intake, tti step headers and exhaust.
I am going to go with a mild 360 and 3.91 gears in my car in the future.
391's going first before I pull the 318 out and put it in my 1966 dart.
3.55 complete rearend is going in my 66 dart as well.