What rear gear ratio

WHAT REAR GEAR RATIO BE GOOD FOR MY CAR?LOCAL TRACK IS 1/8 BUT THE OTHER TRACKS WILL BE 1/4...I'M THINKING HP RPM BE AROUND 7500RPM TO 7800RPM[I'M GUESSING]IF ANYONE CAN TELL ME THIS[RPM RANGE]WOULD BE GREAT ALSO..
OTHER THING CAN I GET BY WITH A SET OF STREET/STRIP GEARS OR DO I NEED TO GO WITH THE PRO GEARS?
SPECS;
540bbc blown alcohol engine
4.50 bore
4.25 stroke
6.535 rods
11.8 static comp.
731/726 lift roller //114 lobe center //running dur 322--326//dur at .050 284--288
brodix 2-plus heads flowed to 372cfm on intake at 700 lift
12-71 blower 25%OD
big&ugly injector hat
port nozzles
990 pump
fuel system flowed by spud miller

trans;;pg with brake
1;80 straight cut gears
10 disc high gear

strange spool
35 spline strange axles
car estimated at 2800 lbs
32x14.5x15 slicks

 

rear gears

find the calculator that tells you all the info you will need. I am sure you can find something on line Try goggling things. And you really can,t go wrong with 430's. Just my opinion Thanks Don

 

We have a 2800lbs car

526 Chev
Billet Morgan heads
10.4:1 comp
14/71 HH Retro making 30lbs
Crowerglide
3 speed lenco
34.5 Goodyears on beadlocks
Runs 6.80 @ 205mph
Shift @ 7500
3.89 gear = 7200 @ 205mph
4.11 gear = 7700 @ 205mph

Use PRO gears only.