Fuel pressure regulator

Need to replace my in line fuel regulator...have 3 webers...what is the best to use..

here are a selection to consider;

http://www.summitracing.com/search/part ... 4294771307

the fuel lab regulators are expensive, but they can be set to pressures of 1-3psi, the rest can go as low as four psi.

as anyone used the holley 12-801

The Webers usually do well at 3 1/2 psi. Good luck

I run a Holley on my triple. I think I have the 12-804 model 1-4 psi. It works well with the webers. There was a post a while back by Powerband on a (*I think*) Mr Gasket regulator that decided to start to leak one day out of the blue. That was why I went with Holley. Mines mounted on the drivers side of the block where my coil used to mount (running a DUI now) - an attempt to stay away from the exhaust...

what do you have the pressure set at on the holley

About 3 1/4.

I am using a Holley 12-841 : http://www.summitracing.com/parts/hly-12-841
and a Aeromotive Gauge: http://www.summitracing.com/parts/aei-15632

The Mallory regulator I was using started to leak.

How are you guys plumbing your return lines?

I used the stock line as the return line. Ran a new Russell 8an line next to the frame rail as the feed.

JackFish":2ho20b0m said:

How are you guys plumbing your return lines?

Click to expand...

No return line is used on the Holley 1-4psi regulator. Not that I've looked a lot but I've only seen return lines on (high pressure) EFI systems.

I know GM implemented return lines in the late '60s on their carbed cars to help with vapor lock. Not sure whether Ford or anybody else ever did until EFI.

Return lines are also used with external electric pumps. It helps them keep cool.

You could also run a return line with a "T" just before the mech. pump instead of the tank.