How do you know what the carb is "dumping" fuel in the passenger side? What do the plugs look like? When was the last tuneup?

~90% of carbed 22r's have o2's. AFAIK, 0 20r engines had o2's.

Only thinking about what you said about the problem, its sounds like the AAP diaphram has a hole in it. I'm pretty sure those carbs have them also. The 1st spark plug should look more sooty than the others.

You could also have a vac leak in the vac advance. That would cause some jumpyness.

Josh

1986 Toyota 4x4 22wEBer
Ported EB Offroad H/O Head "Josh Cam"
Ported Intake & Weber38mm Carb
LCE Header & 2.25in Exhaust
RB 1" BL, RS5000, SAW Tbars

2011 FJ Cruiser - SOLD