Hey Scotty I my dad has a 1976 corvette with 110000 miles that shifts kinda slow and seems like it’s hesitant but it’s smooth. The transmission fluid for it I’m guessing used to be pink now it’s dark red and it’s probably been changed before. Do you think changing the fluid will make it shift faster or do you think that’s just how it was meant to shift? (It’s a 3 speed “turbo hydramatic”)

I doubt it, that old, odds are it will need rebuilding eventually