Ran 11.44 @117.69mph

[nxtruck]

Thanks for the info Jim! 409, I know that if you're careful with your tuneup, a stock shortblock will take 125-150 hp hit of spray. Like I said, though, you really need to look at all of your plugs and make sure that it's not detonating. Go 1 step colder on your plugs and follow the nitrous company's advice on recommended fuel pressure. Also, take out 4* timing for every 100 hp added. This will get you close. BTW, the MSD will definitely make life easier when adding the spray.