Originally Posted by cepx111

"The biggest problem is to fat with the fuel or NOS? Just curious, I'm going to add 100-150HP ONLY to my motor and just getting all the info I can. What ring gaps would you recommend? This will only be used on the big end!!"

If your only going to run this power level, nothing to get all freaked out about, no need to file fit rings or anything fancy just be safe have the proper fuel pressure ( 6.5 psi) and take out about 10 degrees timing and you'll be fine.
Goodluck, Cp