Heavy Smoking 1979 RX7

[1988rx7]

Hi, I am new to site.
I owned a 1988 rx7 convertible for about 7 years, but last year she was killed by a little old lady.
Now I own a 1979 Rx7 that I am restoring. I got her painted, did the interior, changed the dash, she is almost ready...

But now I have a Big problem. She started smoking alot, I changed the oil one day and the next driving down the highway she began smoking so much I couldn't see the car behind me.

I parked the car thinking I broke an oil seal. Talking to a friend was told that maybe the rod from the carb to oil metering pump got stuck and was letting the pump inject lots of oil into carb, hence the heavy smoke.

Have verify the rod and its not stuck, when even further to lubricte with silicone that area.
After a week of the car sitting, I tried starting her, and she worked no smoke.
Took her out for a long drive, no smoke. That night I tried to go to Blockbuster to get a movie, she started smoking like crazy.

I am stuck, not familiar with the nikki carb, don't know how to troubleshoot this problem. Could it be the carb, the choke that stays close and sucks the oil, vacum leak, or the metering pump?

Car has original factory setup, original engine with 135k miles, no aftermarket parts.

Need help please.