Carb/Nitrous guys come on in!
 

So my Holley blue fuel pump is failing on me (bad brushes worn commutator) and I need to replace it. The blue has always been sufficient up till now at keeping the carb fed with fuel. My question is will a Holley Black keep me fed with the new 331 I'm building? The plan is to ditch the super powershot NOS system I have now and get a big shot and shoot 200 through a progressive controller eventually. Will the black supply the fuel? I have -8 lines from the pickup to the regulator and -6 from the reg. to the carb. Thanks in advance.

I would run either a bigger pump or two pumps

You can always up the pressure on a blue pump with a spring kit if the pressure is what is falling off.I have Aeromotive A1000 just sitting on the shelf that has -10's in/out.It needs to be sent to Aeromotive to be freshened up.Other than that it is fine.

What are you running?

Yeah I never ever lose pressure at WOT. Its now just a matter of the pump not starting if I shut it off, and having to rap on it to get it started or take it apart and spin the shaft manually and itll go.

I currently run a 6.5 lbs of pressure.

New black for the regular fuel system and a small fuel cell and Blue for the nitrous supply. I never believe in pulling nitrous fuel supply off of the normal system. Just my opinion.

are you running a standalone cell for the nitrous? with a bigger shot it would probably be a good idea, always a good idea to flow it every time you go to the track

You may be right. What worries me is when guys run one grade of fuel for the carb and a higher grade for the nitrous sys. Seems sketchy to me, I'd be worried about the lower grade fuel detonating??

More money More money lol

I alway's ran a Holley Black with nitrous on my big block. Never had a problem running a 275 shot.

rebuild the blue for the motor. Its like $15 for a rebuild kit. You can get a jegs brand black pump"holley black" for $97. Jegs has a 1 gallon cell for $120.

One pump, fuel log with separate regs.

Just run 93 in the car tank and you'll be fine.

Why?

You ever had anything with nitrous?

here we go...

I think the separate pump, seperate tank deal is more for street cars with stock in tank pumps, stock everything else- mainly efi cars with multiple tunes. Even then, I don't care for it. All Shawn needs is a good pump and a couple $30 Holley regs.

If 900" motors with 5 systems can run off one pump and one log, I have a feeling Shawn would be fine.

^^^^^^See there. Skreet car. Running a plate kit on EFI fuel pressure is PITA. Been there done that.