it drives n sounds good but wen i try to speed up it slows down like its gone stop n cut off on me...any ideas y its doin that

That sounds like a lean fuel problem. If this occurs only when the engine is cold, check the choke setting and operation.

If this occurs after the engine is at full temperature, the choke is not likely involved. That would be more likely a problem with fuel bowl level, rich stop adjustment, clogging passages, or possibly an accelerator pump.

That sounds like a lean fuel problem. If this occurs only when the engine is cold, check the choke setting and operation.

If this occurs after the engine is at full temperature, the choke is not likely involved. That would be more likely a problem with fuel bowl level, rich stop adjustment, clogging passages, or possibly an accelerator pump.

ok well it backfired a cupple times today 2 if dat narrows it down any

Could be either a clogged catalytic converter or the fuel pump could be on its way out. Either thing would cause these symtoms.

yea my car cuts off when i turn the steering wheel a certain way to the right hand side...like it'll completely die but all the power in the car will be on..like my in dash will still be playing and everything else...but when i cut the car off and cut it back on it cranks right up

i just put a new fuel pump on it

Did that solve the issues?

Did that solve the issues?
no tha issues started after i had did that

The new pump might have slugged the carb with lots of sediment and debris. That would easily explain any lean mixture problems. Sediment in the main metering wells and jets will starve it for fuel, as well as possibly damage the accel pump, etc.

The new pump might have slugged the carb with lots of sediment and debris. That would easily explain any lean mixture problems. Sediment in the main metering wells and jets will starve it for fuel, as well as possibly damage the accel pump, etc.

what about the fuel filter in the carb ......?

If the filter is clogged but installed properly (with the spring), a good (new) fuel pump will unseat the filter and allow fuel in at about 4 PSI of pump pressure. That would allow unfiltered fuel in, of course.

The later model E4MEs have paper elements, and the older model 4MV/4MCs had sintered bronze elements. Both should have had relief springs since the '60s.

Apparently, there is adequate fuel to start and idle the engine. If the bowl level is high enough to idle the engine, with a working accelerator pump, that should prevent the type of tip-in stumble he is reporting. It might quickly go lean, but also might not return to idle once the throttle is closed.

If the filter is clogged but installed properly (with the spring), a good (new) fuel pump will unseat the filter and allow fuel in at about 4 PSI of pump pressure. That would allow unfiltered fuel in, of course.

The later model E4MEs have paper elements, and the older model 4MV/4MCs had sintered bronze elements. Both should have had relief springs since the '60s.

Apparently, there is adequate fuel to start and idle the engine. If the bowl level is high enough to idle the engine, with a working accelerator pump, that should prevent the type of tip-in stumble he is reporting. It might quickly go lean, but also might not return to idle once the throttle is closed.

I have had this occur before ,,the carb filter pluged with gas tank rust ....then on acceleration the engine would fade...start up fine but when the throttle was depressed it caused this problem...

obviously a vacuum leak would cause a lean condition...there are a lot of hoses on that engine, a bad hose in the wrong area will give him this ...

the other item's are the carb base gasket, and the EGR being defective.

If the filter is clogged but installed properly (with the spring), a good (new) fuel pump will unseat the filter and allow fuel in at about 4 PSI of pump pressure. That would allow unfiltered fuel in, of course.

The later model E4MEs have paper elements, and the older model 4MV/4MCs had sintered bronze elements. Both should have had relief springs since the '60s.

Apparently, there is adequate fuel to start and idle the engine. If the bowl level is high enough to idle the engine, with a working accelerator pump, that should prevent the type of tip-in stumble he is reporting. It might quickly go lean, but also might not return to idle once the throttle is closed.
will the fuel filter not having the spring hurt anything

will the fuel filter not having the spring hurt anything

If this filter is not properly installed the debris will bypass the filter , then as blue bowtie stated the carb is most likely damaged by this..