Help me do the math. 4.88 gears

the old saying for a drag car is 3000 rpm @ 60 mph. Typically, a 4.88 geared car would use a 31" tire. You could fit a 9 x 30" tire in there and go with a 4.56 rear. I run a 4.30 on a 11 x 29" tire. Runs low 10's @ 128 mph; 6800 rpm

I think you would really like the 4.10 or 4.30 in that 273 car on a 28" tire!