MSD ignition installed, now I'm thinking transmission time?

Justin Looney said

I just installed a MSD 6a and have actually been battling some overheating issues. I'm wondering if my timing might be off. When you switched to the MSD did you have to retard timing at all? Where are you sitting with timing at idle without vacuum?

Thanks in advance!

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Holy back from the dead thread Batman! Did you notice that the thread replied to was 10 years old,,,

Since you have timing issues,,,
It is not uncommon for the rubber ring in the damper to disintegrate with time and allow the timing ring where the marker is to slip. Do you know how to use a piston stop tool to determine if the indicated TDC is correct?