HELP!!! Carburetor & Vaccum Line

New to this site...Please HELP concerning the TIMING settings (what are the adjustments) and vaccum setting for a 1984 Chevrolet C-10 Scottsdale 2-wheel 4 Barrel P/U. Thanks for all your help!

What engine and what engine code? 8 diget in vin.

Thanks for reply MT-2500....305 (1GCDC14H3EF389476)

Unplug dist advance vacume line and set timing at 4 degrees before TDC.