1974 dodge d100

[GDU]

I got that 74' dodge I've been working on for the past few weeks, and after changing all the bad parts I finally got it to run.

When I try to start the engine, It'll fire up right away and then after 10-20 seconds, it will slowly die.

Second try does the same thing, but dies slowly quicker than the first try.

Then afterwards if I want to start it, I need to keep pushing that gas pedal until it starts, but will die as soon as I remove my foot.



Help please!
Thanks

[BSB67]

Try the easy stuff first.  Remove the gas cap

[nvrbdn]

yep, and check to see fuel delivery. tank, pump, filter. You can disconnect the fuel line from the carb and put it in a gas can that is empty. Pour a little gas into the carb and fire the engine. check the can to see what is in there. Then repeat for the second and third start to see if you get the same amount of fuel as the first. Could be clogged filter in the tank or in line, or a weak pump.

[GDU]

I'll try all that and give an update as soon as I can!
Thanks

Btw; I'm able to keep the engine running as long as I keep a little pressure on the gas.