You will need injectors. The Fast is just to pricy for my taste. I had the factory 28 lb. injectors with a torquer V2 and my injector duty cycles were like at 92 percent. I went with racetronix 42's. That cam is even bigger so you will probably be at 100 percent at wide open throttle. Thats not good. The injector is just continously spraying with no breaks in burst. This will lead to premature injector failure. So injectors are a must. The FAST intake is all on you. But man that a stiff price for two pieces of injection molded plastic. I used to work in the injection molding business and you would not believe how inexpensive they are to make.
__________________ 2002 Ws6, m6, 13,000 miles, Texas speed stage 2.5 ls6 heads, V2. cam,TS duals, Yella Terra rollers, racetronix 42 lb. inj. Z06 MAF, P&P 85MM TB, F-body specific nitrous set up 50-400, kooks stainless exhaust, BMR springs, SLP Bilsteins and SFC's, LCA's and few others. Work on it, tune it and drive it.
if Naturally aspirated and you have a cam and/or heads mods you will be fine with 36# or 42#, whichever you like. both will run fine, 42 will leave more breathing room.
if you want data with injectors call vendors and ask if they can provide it. I will guarantee if you purchase 36# or 42# with a cam/head ls1 or even ls2 they will run fine if you go in the tune and change the IFR table and look at the injectors min pulsewidth and slightly lower the min pulsewidth and short pulse adder tables, and set the short pulse limit to 2.5.
you will still likely have to tune the VE table but that is the basics of it
__________________ 01 T/A WS6 #4984 PM for info...funny rear mount...father/son build. My Rear Mount build 655RWHP & 688RWTQ NEW: TC76, 69.65# FIC 725s , FPR, External Bosch 044, 12-Bolt 3.42,
Manifolds, Forged Rods+Pistons, Leaky Moser or issues?