86 CJ7 Timing

[cLAY]

Ported vacuum is of the manifold. Vacuum advance is off the carb.

Ported vacuum is above the throttle plate, on the carb. Manifold vacuum is off of the manifold. I'm guessing that being a mid 80s you want ported vacuum off of the carb.
This is a good read. Be careful though you don't over think things with all the info.

http://www.jeepforum.com/forum/f12/manifold-vs-ported-vacuum-994651/

[Marco]

Update, i have found top dead center on compression stroke and installed new cap and rotor. Vacuum line from distrubuter i have on the passenger side top outlet of carb. the others are plugged. I timed it at 8* at 1500 RPM with vacuum not on. then resinstalled vacum advance and fired it up again. Advance seems to be working and runs and idles fairly good. Only if i get up to the 2500RPM range i can hear some slight pinging again.

8* idle then advances to around 16* at 2000rpm then keeps climbing with rpm. I agree that it works, properly? dont know. I may put another jerry can of premium in it to see if there is still poopy fuel in it?