1953 Mercury Monterey problems

[JesseD]

Hi

I’m new here and I just recently bought a 1953 Mercury Monterey that is completely original.

Anyway, I am having a few issues that I need help with. It is a stock 1953 Mercury with the MercOMatic and the previous owners added an electric fuel pump to it. I run the car with the electric fuel pump off as it runs the same with it on or off.

The car has a hesitation when under load. The car starts right up and will idle perfectly but when I put it in drive and step on the gas it starts to cut out and sometimes stalls. I can drive 40MPH all day but when I stop and go to start again the same thing usually happens but not all the time. The car also stalls out when going up steep hills but restarts itself due to the car moving.

I did adjust the idle air mixtures screws out a little and it seemed to help for a few days but now it is back to stalling again and when going uphill.

Thanks