Slant six timing issues

What year/ model vehicle/engine? Any other mods?
Exactly what distributor did you use? Is the vac advance hooked up?
Its 1970 plymouth valiant has long aussie ram intake manifold, 4bbl QFT carb, msd6al box with blaster coil. distributor was new out of box. Vaccum advance was hooked up when starting but ive made no adjustments with it hooked to the carb. NEW DISTRIBUTOR FOR CHRYSLER DODGE PLYMOUTH 1973-1987 225CID 3.7 STRAIGHT 6-CYL | eBay