hoosier, i think so, so then the elec. pump pumping 15psi is downpressured by the regulator whic h keeps it at a say, constant 6 psi.thruout its "running cycle"? do i need to block this nipple off because it isnt needed with an elec. pump? or is it still needed in some form?

hoosier, i think so, so then the elec. pump pumping 15psi is downpressured by the regulator whic h keeps it at a say, constant 6 psi.thruout its "running cycle"? do i need to block this nipple off because it isnt needed with an elec. pump? or is it still needed in some form?

You will need a boost reference to a regulator.  If you don't, the regulator will maintain about 6 psi all the time and fuel flow to the carb will stop when the boost comes up.  If you have say, 6 pounds boost, you would have to have 12 pounds fuel pressure so the carb thinks it has 6 at the float needle.  Put another way, when the boost is at 6, the fuel bowl is also at 6.  Without more than 6 in the fuel line, fuel won't flow into the bowl.  Without check valves in the fuel line (as in a mechanical pump), you will actually blow air back down the fuel line to the tank.

John - "The Hoosier Hurricane"

I used the Mallory 4309 regulator on my setup. It's boost referenced 1 to 1 so for each pound of boost it will add a pound of fuel pressure. They are usually on EBAY used and new. I ran a tube from the nipple on the McCullouch directly to the regulator. It reads boost pressure directly from the supercharger and compensates. Really a pretty simple set up. I've had more trouble with the pressurized carburetor issue. Without modification vacume secondaries will not work. Mechanical was too much fuel off the line. I'm still considering a pressure box or carb enclosure like the Paxton or Vortech units. I've done some reading up on sealing up a Holley for blowers and it dosen't seem too difficult but I never trust ME! Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

thanks moonshadow, i will start looking for l on these. ebay is good for some things

One thing that has changed, since 1982,  cars have to have a master cutoff switch outside the car to shut off all power to the car. The "general safety" pages of the rule book should cover all the thing that have changed since the car was on the track last.

Gary Ryan San Antonio.TX.

A master cut off switch only if you have a trunk mounted battery.

thanks fellas, I appreciate all of the tips you guys are posting