when I ran a glide in my street 67 Camaro I stepped up to 5.13 gears.
your 3.73 gears are street gears. 77 Camaros are quite heavy,My 89 Camaro weighed 3915.
4.56 gears would give you a top speed of 115 mph at 6,000 rpm and 29.5 slicks
If your car weighs 3 000 pounds,with your engine,you should run 12,0s or a bit quicker,using a 3 speed auto