Too much carb? help..please..

[Arkgl01]

I just got a new 318 put in my 75 plymouth fury. I know its no charger but I reall could use some help. I had it built and put a RV cam in it like alot of people recommend. I put a 4 barrel and 650 edlebrock with elctric choke. The car fires up perfect when its cold but after a short trip and gets warm it take for ever to get it started and I have to hold the pedel to the floor. A friend said I should have never gone 4 barrel and need to put the 2 barrel back on it. I saw there the car was sitting was alot of black soot on the ground also.... can anyone help?

Mark

[Challenger340]

Sounds like the floats in the carb bowl are too high ? Can you check them ?

Once the engine is shut off hot, remove the air cleaner and see if you see "steam" down the barrels, a good indicator of fuel running in after shut down.
If you do, Check/adjust the float level.

[deathcharger71]

i had the same problem with a 750 eddy on my 360, problem went away when i got a holley  but it should be an easy fix with tuning the carb, the 650 4 barrel is fine for your 318. have you set the idle screws yet?

[Arkgl01]

Thanks for the info, I will try adjusting some on the carb! Got it with a mechanic now.

[mikes_classics_68]

yeah holley 750 DP  best carb i have ever seen for mopars in my opinion