i dont knwo maybe a 100. There is so many varibles with nitrous. just make sure you have good fuel pressue, colder plugs and pull timing. I havent messed with 4.3. My buddie has a 4.3 in a s10 and we have been talking about a 150 shot on it but we havent got around to it yet. See if it holds?????
old set up: 2002 chevy 5.3, procharger 12lbs boost, asm headers, ls1 edit, flames, 20inch budniks
New Set up: 2004 chevy 5.3 ext cab, 12 inch twisted suspension lift, 36's, exhaust.
future mods: 150-200 shot, ls1 edit, air intake, stall, 5.13 gears, 12s or bust
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