Stumbles off and on...

[Geff McCarthy]

my 63 400 Eddie 4bbl usually runs well. On return from a 727 rebuild, it now intermittently acts as if running out of gas, then recovers. Yes, I need to get in there and try to diagnose, but...expertise wanted!!

 

[Don Frelier]

Fuel filter?
Sending unit pickup sock?

 

[Geoff 2]

Is it a flat spot? More info needed. Might be a worn/defective acc pump plunger. Actuate the pump & look for a fuel stream.