i think you can if you get a custom dyno tune, (other wise NO) not 100% sure, my predator will be here on monday and within the next few months i will be doing a 75 shot of NOS also . but i wouldnt try it with out a dyno tune from a GOOD shop. you could blow the motor if you dont have the right a/f ratio.....
i have a predator and the nos noszle kit.hooked up an lm-1 and discovered i was running rich with predator tune. i leaned it 2% and added 1.5% timing 4-7000 rpm.a/f now is 12.1 when nos initially hits then levels off to about 10.6-10.8!!!