I have a 350, around 350 hp, with a holley dp. Fuel and ignition are top notch, will this carb. support a 100 - 150 shot, or should I be looking at something to feed it a little more ?? thanks

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87 IROC, 350/5 speed. gmpp 350, vortec heads w/some work, XE268, 1.5rr's, 650dp, rpm intake, MSD ing., ect.
89 formula, L98.

 

If you're talking about a 100-150 HP shot of nitrous?...Then your carb will be just fine. The carb doesn't supply either fuel or air for the nitrous system. The nitrous system simply adds to the mixture that the carb is already supplying. The fuel pump, lines & filter are the limiting factor, not the carburetor.

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Tracy /AKA IROCKZ4me

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

My IROC-Z
EFI Performance Club on Yahoo
Club IROC-Z

 

oops, I thought that the carb had to compensate, but since you mentioned fuel supply - I'm running stock 3/8" lines and am wondering about the fuel filter. I have a car that was tpi and still has the inline tpi filter, now the car is carb, will this filter impede a lower pressure pump (holley red pump plumbed inline) since it (filter) is designed for high pressure use ?? thanks

 

Sorry about the long delay. I didn't notice your reply before and haven't been online as much lately.
Those should be fine up to around 450-500 total HP range. They become marginal there. If you will be running higher HP ½" tube would be a good idea. You can get 25' for around $20-$25 + fittings.
Another fix would be to use a high pressure EFI type intank pump. The higher pressure will force more fuel through the smaller diameter tube. Then use a good FP regulator before the carb & fuel solenoid to drop the pressure.
A stock TPI filter should be fine as long as it is fresh. There isn't much restricion there. The housing is just made to withstand higher pressures without bursting.
Be sure to keep it fresh though. Higher pressures will push more fuel through a dirty filter than low pressures will.


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Tracy /AKA IROCKZ4me
'86 IROC-Z Camaro

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

My IROC-Z
EFI Performance Club on Yahoo
Club IROC-Z

[This message has been edited by IROCKZ4me (edited January 26, 2001).]