Hi Oldman,
Thanks for the reply. What kind of mileage do you get with the coupe? I have 355 gears in my coupe now but want to change to 3.00 to 2.80 gears for the mileage ( not sure what will fit on my 355 carrier. I fudged a little on the description of what powers my coupe; it actually still has the 389 Pont. that I put in it 40+ years ago but I have a 461 Pont. built and ready to drop in as soon as I sell the 389. Again, thank for the reply.

Jack.