My B2200 Will not stay running

nigI have a problem I can not figure out. I have a 92 b2200 se-5 truck and I put a 2.2 in it from a 1988 b2200. It ran great for about a month and went to start it up one morning and it stalls out on me. I put a new rotor, plugs, cap, wires, fuel pump, air cleaner, checked the vacuum hose for leaks and it was ok and cleaned out the ERG value. I can get it to idle sometimes but then after about 2 min. it starts to like miss and stalls. But when I go down the road and push in the clutch it will stall.

I would have also replaced the fuel filter. Did you re-use your intake manifold with carb or was that attached to the replacement?

I did replace the fuel filter to. and there was no difference. I used the carb and intake that was attached to the 88 engine.