My expectations weren't very high. Just thought by improving the 60" by a few tenths would lead to a few more tenths off at the end.
4.88 gears
33" tire
3500 stall
Don't know what the weight is. Tubbed with a cage. Not much interior.
Shifted at 5500
https://youtu.be/8xeiaGZZCdc You do seem to be going through the finish around what you shift at. But 4.88 gears, even with 33" tall tires, seems like a lot for a "stockish" 383.
Going to a bigger carb (750 to 850) to improve street drivability seems like the wrong direction to go.
Tuning the carb can sometimes provide surprising results. But it takes patience, tuning parts (jets, squirters, pump cams) and an understanding of how they interact. There are some good, old Holley tuning books out there that I learned a lot from.
