Fuel mixture, idle adjustment, and timing all interact with each other. If you change one it effects the others. Try resetting the timing and then do the others again.

 

What should I reset the timing too? I did 10 after as it showed me in the chiltons manual.

 

If you still have an emissions label under the hood you should always use the timing it states instead of any manual. If your last post is correct, you have identified a problem. The timing should be before TDC, not after TDC.

 

Ugh chiltons failed me, I went out saw for my truck it says 8 before. Do I still use that timing if my engine was from a 77 diplomat? Or do I need to look up what there timing was set at?

 

Just so happens the 77 318 timing was also 8 degrees before TDC. I am assuming you are working on a 318. If not please state what engine, ignition,and emissions systems are in the truck currently. 77 360 was 10 BTDC. If you have a mix-match system you might want to get it close with a timing light and then go by ear a couple of degrees each way until you find out where the engine runs best. Write that down for future use as the best timing for the truck.

 

Yes it is a 318 and as far as I know it should be all around stock. Thanks a ton for the info I am about to go out and mess with the timing now.

 

Update: even after turning the timing back to stock I had the same problem of truck having a hard time to keep idling then would stall if I gassed it. Had my mechanic friends come over and they advanced the timing again and adjusted the carb. Truck ran pretty well again until this morning after not driving it for a day it had the same problems of hard to keep idling and would stall out if gassed. I looked a the vacuum diagram and I appears the vacuum advance line from the distributer is going to the wrong place on the carb so I swapped it over. Seems to be running smooth but it may only seem like that because the truck is warm. My question if this doesn't work is what could the problem be if it stalls the truck when cold, bogs and jumps when warm, and accelerates well when at operating temperature? Another syptom I have is the truck doesn't feel like it has the same amount of tourqe it did before the new carb. Sorry for the long story guys, any help would be amazingly appreciated