I know a little about NITROUS.... Stick with a CASE INJECTED SYSTEM ,and NOT some hillbilly drilling into the intake boots!!!! You're asking for TROUBLE when you drill a hole into a rubber boot like that.. if you were to buy a MOLDED boot with a hole in it, that would be a different story.. STAY AWAY FROM the AIRBOX INJECTED KITS!!!!! The BEST WAY is to introduce the nitrous/fuel charge in the air/fuelstream of the CASE!!!!A system HAS TO HAVE A regulated fuel pressure (SEPERATE FUEL THAN THE MOTOR) and a VERY CLOSELY controlled nitrous tank... The length and temperature of the steel braided lines WILL effect the NITROUS pressure on the way to the solenoids....the fuel pump and fuel tank for the nitrous MUST BE SEPERATE than the sled's common tank... YOU HAVE TO PREMIX AT LEAST 110 octane with SYNTHETIC 2 stroke OR BEAN OIL for the NITROUS SYSTEMS FUEL SUPPLY... 93 octane in a nitrous system is JUST PLAIN STUPID!!!!! If you want NITROUS TO WORK, and WORK RIGHT,,, PLEASE do yourselves a favor and get a little education about NITROUS BEFORE you drop a lot of cash into a system that is a DUMB IDEA!!!!! WITHOUT GOING INTO NAMES, there are a LOT OF STUPID SYSTEMS OUT THERE..... Some shooting nitrous into an airbox (REAL STUPID) to not using solenoids (PRETTY DUMB TOO) MECHANICAL INJECTION works WELL on a TOP FUEL MOTOR,,, BUT,,, You couldn't afford the fuel pumps NOR do you have enough HP to even drive those pumps!!!! MY POINT IS,,, Theres a lot of garbage out there and a lot of guys who are trying to build a better mousetrap!!!! if you know the ins and outs of NITROUS,,, you wouldn't even bother with 3/4 of those guys!!!!! When Mike Thermos sold his rights to HOLLEY, I pretty much gave up with nitrous on sleds,,,so Its been a while since I played with it,,, BUT, just like riding a bicycle,,, it comes back quickly!!! LOOK INTO NOS SYSTEMS and see what they have to offer,, I don't know if their tech guys are anyone from Mike Thermos's era, but nevertheless, they could steer you in the right direction... Gary Oles nosboy