well, in the midst of trying to tool with the truck while trying to concentrate on getting my 69' done, I came across a new NX kit, part# 20915-10 for $338 shipped to my door!! Bit the bullet and decided to put it on my Vortec 5.7 that's in the truck now. Should put it at or better than the 14.66 I ran on 7psi before. I'm thinking of running a 125 shot on it. After it gets here and I get everything installed I'll post some pics up and get some 1/8 mile times (the 1/8 mile track is right down the road, it's a long hike for the 1/4 mile track in alabama lol). Anyone have any experience with this part #?