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  1. EL5DEMON340

    Bypass regulator expert?

    Do bypass regulators bleed off fuel pressure when the engine and electric pump is off? Reason I ask is I have a heat soak restart issue and I know it will help cool fuel make it to the carb if it’s plumbed after the carb but if it doesn’t release pressure in the line at shut down i may be...
  2. EL5DEMON340

    How would you run the return ??

    I’ve got a brand new spectra fuel tank about ready to go in my 71 demon along with a new 3/8” sending unit. I run a Mallory elec pump and will be using a return style regulator to help ease fuel boil over when parked hot. I will run a 3/8” return back to the tank. The sender has the small...
  3. EL5DEMON340

    Vapor lock

    Now that I have a 6 pack on my car when it sits hot for more than 10 or 15 minutes it is hard to start, guessing it has to do with all that mass because I didn’t have this problem with a 4bbl. I run a electric pump so no problem when driving. Can I replace my regulator with a bipass regulator...
  4. EL5DEMON340

    340 fuel pump keep up ??

    Looking to dump the electric pump and go back to a stock simpler type set up. Will a stock 340 pump keep up with 450hp 6 pack? Any good aftermarket hi volume pumps that do not need a regulator? Thanks
  5. EL5DEMON340

    AFB, AVS, Thermoquad, replacement part resource

    Came across this, haven't seen it before, not sure if all these part numbers are good but it might make a good sticky 403 Forbidden
  6. EL5DEMON340

    Elec fuel pump placement with stock tank, 71 demon

    Looking to ditch the fuel cell in the trunk and install a spectra new stock tank with 3/8" pickup, I'm running a Mallory electric pump and was looking for ideas to mount it without drill more holes. I know its tight in there with the shocks and exhaust etc..
  7. EL5DEMON340

    Old D/C Hustle Stuff Mechanical 6 Pack 4782/4783 carb build

    Got this nice set up off of member Woody30. Not a whole lot of info on these so this thread will hopefully help others that want to run them on a SB. These were sold through the Direct Connection Hustle stuff P part program in the mid 70's through early 80's as a race replacement for the stock...
  8. EL5DEMON340

    Weiand action plus #9004 ???

    local CL has a weiand action plus #9004, said its for mopar what is this intake for sb or bb, and whats it worth ?
  9. EL5DEMON340

    Thermoquad ?'s for the experts

    looking to move away from holleys and just picked up a 6321 t-quad, last night i was checking it out closely, removing casting burrs, ect.. and have a few questions, I noticed on the fuel transfer tubes that are just under the secondar air valves that one tube on the DS has 4 holes, 2 big and 2...
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