Small block help

This is a tough one to answer since we don't know all the specs and because the performance of the motor will be subjective. There are several possible upgrades but of course, they sometimes affect mileage (if an issue), drivability and always ... the pocketbook. As mentioned, it might benefit from rear gears or a stall converter or engine mods like a cam upgrade or cyl head swap. It's only money after all. ;). If you can get back with additional info, that would help. GL.