if it wuz me ,,
with that cam, compression and engine size ,, i'd say the engine likes to go to right around where its coming across the stripe. But you may not be extracting the torque out of the engine cuz the gear is helping it. That may not make sense to some , i'm sure somebody with a slide rule and full knowledge of how to use it will chime in any sec now. But thats how it seems to work to me.
What is the intake/carb combo ur using ??
Is the engine still pulling at the stripe , or has it got lazy ?? I think thats the best thing to consider. If you could borrow a 29.5 or 30 inch set of tires , and see if the car picks up would be nice. The extra circumference of the taller tires will act in a way to take away some of the gear now slightly , so you would know which way to go.
I like big gears myself. Super stock cars with similar combos ( back when i used to keep up with it anyway ) with a glide but with 32" tires would prolly run a 586 or 614 with that combo.
I be it sounds good buzzing 7900 through the traps :devil:
Kudos on the 364 , used to be several around here
a car with a turbo takes different consideration as far as rear gear goes compared to a glide IMO. I think you have to think about the different sections of the track where the car needs the gear. A glide usually needs more at take off and will pull first gear longer due to its numerically lower first gear ratio so it needs more in the rearend to get the car through the initial phase of the pass and on down the track because its going to get hit with high gear earlier too . A turbo will cycle through first gear more rapidly and onto 2nd so the transmission is helping the car accelerate more than the glide but it still has to pull high gear all the way to the stripe. Usually the best possible senario would be that the car " noses over " just before it gets to the stripe. Then you've extracted everything from the engine possible and its no longer accelerating but now the pass is over.
If you want the best from your car , i'd say its going to take a couple gear swaps to really nail it down.