I like the smaller shot because of cylinder pressure and less strain on the drivetrain. The 125 shot for the intire run will net about the same as a 200 shot for 2 seconds. Plus the MPH will be up.

thanks clock, you bring up a very good point. The convertor. Yet another reason why this testing will be critical. This convertor stalled 6700 on motor but Abruzzi said it would be fine for nitrous. I'm guessing a tad loose another reason for a baby shot!! no worries about the drivetrain as this is a promod car with a bracket motor in it!! cylinder pressure also something to consider, thanks!