72 Chevy k20 350 won't start

[chevytruckluver]

Originally Posted by 72chevydump

Ok here's the Situation I'm in.

After the truck is warm it's idling high. If I turn the dizzy to get it to idle better when I work the throttle it pops back through the carb. So with the idle sounding pretty good I tried adjusting the front 2 screws. What are those 2 screws? Because it seems no matter where I turn them it doesn't change anything? I think im close I havin it running good it just needs some fine tuning.
Posted via Mobile Device

Step 1 get a timing light and set the timing, then tighten the dizzy.
Do not use timing to adjust idle speed
Step 2 make sure you have no vacumm leaks or misfires (any problems need to be fixed before you can proceed further) then adjust idle speed
After you have the idle speed set on a warm engine then you can adjust the 2 screws for the idle mixture. These screws will not have an effect on anything at speeds above idle.
Step 3 recheck timing
Step 4 let us know how it's going after that
Good luck
Posted via Mobile Device