Turn Signal Question

[JBALL]

Folks,

Looking for some help with my turn signals.

Background:
1969 Camaro - Passenger side worked but drivers side would not flash. Started trouble shooting and wiring was a mess. All kinds of splices and some of the sockets were bad. Ground wire on drivers side was hanging on by a thread.

Step 1: Replaced the rear tail light harness along with both engine compartment harnesses. Still same issue. Drivers side would not blink. Would stay on solid. Passenger was fine.

Step 2: Replaced flasher under the dash by the radio. Both driver and passenger now flash, 4-ways, stop/tail all work! Everything works! kind of...

Now I have a different problem.

When I active the turn signal, the engine skips. Just while the cam is being selected. Once the lever is in place (signal on) no more miss.

I have no idea where to start. Ground? Steering column issue?

Hoping some one has experienced this and might have a solution. I can try posting a video if that would help. It almost stalls the engine.

Thanks SYC.

JBALL