seriously considering spray for mildly moded 305 tpi
Thread Starter
Junior Member
Joined: Mar 2004
Posts: 41
Likes: 1
From: tabernacle NJ
Car: 89 formula and my late 86 iroc R.I.P girl
Engine: 89 firebird formula-305 tbi,86 iroc 305 tpi
Transmission: both 700r4
seriously considering spray for mildly moded 305 tpi
i want to go faster. considering n2o. i have a rebuilt LB9 305 tpi out of a 86 iroc in my 89 formula. i want to use the spacer plate system (the one were n2o is sprayed in via plate between plenum and throtle body) need to know who makes these kits and the pros and cons. how many of you guys use these kits and is in really worth the risk. how much is to much.
mods on my car are as follows
cold air intake
adjustable fuel pressure regulator set at 49.5 psi
crane cams compucam (this is a mild cam with a little more ***** then the stock one)
eldlebrock headers and y-pipe
3in exhaust
hyperthech cap and coil with 8.5mm wires and double plat plugs
3.73 rear gearing
no a\c if u consider that a mod
mods on my car are as follows
cold air intake
adjustable fuel pressure regulator set at 49.5 psi
crane cams compucam (this is a mild cam with a little more ***** then the stock one)
eldlebrock headers and y-pipe
3in exhaust
hyperthech cap and coil with 8.5mm wires and double plat plugs
3.73 rear gearing
no a\c if u consider that a mod
Senior Member
Joined: Jun 2004
Posts: 720
Likes: 0
From: Saint Clair Shores, Michigan
Car: 1985 IROC
Engine: 350 TPI (block was swapped)
Transmission: 700r4 w/corvette servo
Axle/Gears: no idea
Yeah I kinda want to know also, only difference is I have a carb, I want to get one of those plates that go in between the carb and the intake manifold. The only mods on the engine i have are headers, and thats not really the engine. I have a 350, runs pretty solid, what kind of shot should I use and still be in that nice big pretty "safe zone" Its my daily driver so i dont feel like blowing a piston through my hood or something to that effect.
Joined: Mar 2004
Posts: 1,643
Likes: 50
From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
I have run dry nitrous on my car. 2 bottles worth(30 passes) and good so far.
75hp shot. Really feels good but be safe, get a better fuel pump, a fuel pressure gauge, better gas and make sure you start small and work your way up.
Good luck
LB9GTA
75hp shot. Really feels good but be safe, get a better fuel pump, a fuel pressure gauge, better gas and make sure you start small and work your way up.
Good luck
LB9GTA
Senior Member
Joined: Jun 2004
Posts: 720
Likes: 0
From: Saint Clair Shores, Michigan
Car: 1985 IROC
Engine: 350 TPI (block was swapped)
Transmission: 700r4 w/corvette servo
Axle/Gears: no idea
Thanks for the input, I was originally going to try a 100 shot but ill be safe and just use a 75. 
you probably just saved my engine, haha

you probably just saved my engine, haha
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