Slant six timing issues

Sorry guys im sure this had been adressed somewhere on fabo but i havent been able to find any info. So i installed an msd 6al box along with a new distributor and coil and im trying to dial in the timing. Currently have #1 cylinder to fire at 0 TDC and the car fires up no issue. Problem is RPMs run through the roof maybe 20 seconds after start. I turned down the idle at the carb till screw wouldnt back out anymore and it still sits at 23000 rpms. I figure its becuase i havent adjusted my timing yet but issue is the only timing mark i have is 0 on the damper and my timing tab only has one line on it at 0 and no numbers marking anything else. What do i do.
Almost sounds like a broken advance spring?????