What drag tire size should I use?

[bigsnookmaster]

I used to run 275/60-15 Dunlop G/T Radials on my 70 short stepside.My best 60' time was 1.76 .1/8th mile on motor 7.99 1/4 mile 13.15 at 103 w/150 shot 12.49 at 113.I drove the truck everyday on pump gas,These tires worked real well for me.I also use stock rear suspension with 70-72 Monte Carlo rear springs and Air-Lift air bags.3:73 truck posi.Nothin special but it worked good,you just have to drive them off the line.