Newly aquired 86 g63b with Mikuni carb

[Srr7172]

Ok. Just finished rebuilding the carb. Just did the full rebuild as we had discussed before. acc. pump no longer leaking. But of course she is doing the same thing as before. I'm thinking of trying the ignition coil now. There are no vacuum leaks (well none that change when doing the basic leak check. It does seem to worsen when the truck is heated up. It idles smooth and will remain idling as long as I want, it still stumbles for that first bit of throttle increase. but once past that point it will run at holding 2000RPM and above smoothly. When I do acc. hard up a hill she acts a little starved for fuel. Here is the information that I think is key, When it does cough and die during driving I have to hold the throttle open and crank for a min before it begins to pop and start again. This happens with and without the aftermarket in line fuel pump running. So I do not think that it is a pressure issue even if the mechanical pump is failing. And if pressure is the issue why will it run at high rpm sitting still fine but not after opening the throttle while driving. I'm frustrated as I cannot nail down what is causing the issue.

[85Ram50]

I refer you to Camoit and Geezer's post just before you