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  1. Backally

    Air-fuel ratio schooling needed.

    70Duster with a 408, mid 90's magnum. Street car, probably will never see the track but I enjoy jumping on it more often than I should. Cam is 235/239 @ .050, 535/550 lift. Stage 2 head porting (whatever that is, didn't get a flow sheet). Not sure what idle timing is at, but total timing is...
  2. Backally

    Accuracy of aeromotive sending unit

    Upgraded to efi, got a Aeromotive 18344 fuel tank/pump/sending unit. I know other aftermarket sending units don’t read accurate at the gauge. I haven’t run much through mine yet, but after putting about 10 gallons in it barely reads more than empty. Is that others experience with the Aeromotive...
  3. Backally

    Throttle cable end

    what should a throttle cable end look like on a 70 Duster? Mine looks like this, I can’t seem to find a carb throttle cable stud that fits.
  4. Backally

    Elec pump power source

    Not sure if I should post this here or in the elect forum but figured it would be found. 70 Duster, putting in electric fuel pump this winter. Using a relay, but where do you connect the main power feed for the pump? Directly to alternator? Battery? Need to pressurize the system before start...
  5. Backally

    What type of flare?

    going from 3/8 steel tubing to braided stainless. Have tube nut style fittings for the hard line, going to the braided. What type of flare goes on the hard line so that the tube nut doesn't leak?
  6. Backally

    Fuel filters?

    putting 3/8 line in my Duster. Will have a mechanical fuel pump. I am seeing recommendations to use a 40 micron filter between the pump and carb, but am seeing conflicting opinions about a 100 micron between the tank and pump. Some are saying with the sock in the tank it will be to much of a...
  7. Backally

    adjusting holley floats on shaky engine?

    I am going to rebuild my Holley 750 with vacuum secondaries. I have read the sticky by StrokerScamp and whatever else I can find online about this but will be my first time. Playing around with it I tried to see where my floats are set now, but when I remove the plug, at idle my engine shakes...
  8. Backally

    Secondary check ball missing?

    I have a 70 Duster, 340 with a holley 3310-2, 750 with vacuum secondaries. Don't know much about carburetors other than what I have read on this site. It's had a bog in it when I get on the throttle, reading other posts sounds like secondary spring needed to be heavier. So I am taking it apart...
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