1974 Ghia dies on acceleration

[ouhogfan]

I have a 1974 Mustang II with the 2.8 v6. This car was given to me about a year ago by a friend. It is pretty rough on the outside but was told it had a rebuilt engine with about 1000 miles on it. It had been sitting awhile before it was given to me but was kept inside. I havent spent much time doing anything with it yet but the first problem I want to tackle is this issue with the engine. First of all it is very difficult to start. I usually have to pump the accelerator for quite awhile before it will start. Once running the engine sounds great, but when I accelerate from a stop it will cut out and die or almost die. Usually if I let off the gas and feather it a little bit I can keep it running. I am not a mechanic but can do some engine work if I have some direction. Just trying to get an idea of where I should start looking to solve this problem. One thing I have done is put a new diaphragm in the accelerator pump. Thanks for the help

 

[Mstng2]

If it has the Motocraft 2bbl carb on it first thing I would do is replace the accelerator pump gasket. There about 2 bucks from the local Orielly. Follow the throttle linkage to where it attaches to the carb. You'll see a lever goinging to a little square metal cover with 4 screws on it. The gasket is behind this, if the gasket is cracked or broken when you push the gas pedal to start it or accelerate it wont pump.

 

[eaglecap]

Possible causes:
1: Old Gas, drain tank and clean 2: Plugged fuel filter, replace 3: Crap in carb, clean out bowl and jets.

Since it is hard to start and sat I would definitely drain the tank and put in fresh fuel.