what 3 speed

[55 Chevy]

Previous to running the Ford 4-speed Toploader I used to run a Pro-shifted Borg Warner T-16 3 speed. It had a 2.86 first and 1.71 second gear. That was eighteen years ago. Then I quit for awhile.
By the time I resurrected the car starting a few years ago they had made the change to allow us to run a four speed so I bought a big in/out Toploader(2.78,1.93,1.39)as it seemed like a poor mans Jerico. Made many modifications to make it work and it seemed to be OK.
Best E.T. was just under the index(12.46/12.54) at a 2300' track. 60' times were worse than the old trans(1.65 toploader,1.57 3 speed) even though the motor is making considerable more power than it did way back.
I never did run a Nash 3 speed.
As for why the Toploader was slower I am not sure but the 1-2 gear change was not the best. It really sounded like that I was granny shifting and between this gear change the car would fall on its face then pick up again.

Looking for the Jerico to change that.

Allan