I will share an experience I had been having with my Black '88 Reatta. It started with ignition. Sometimes it would start instantly like it should and sometimes it woud grind for a second or two and then fire, Sometimes it would catch and run and sometimes not and I would try the starter again and it would then catch and run.
While this was going on I would have "accelerator" issues where I would put my foot into it and the car would just take off and not stop accelerating unless I would take my foot off the gas and then hit the accelerator and then it seemed to release and the RPMs would drop back down and run correctly. This seemed to correct itself as I went into another faze.
The last couple of weeks I would get a bucking when I would try to accelerate from any speed almost like the car couldn't breath because of a clogged cat converter. I knew that wasn't it as the exhaust is new. I thought maybe MAF sensor and swapped in another one. No change.
So I swapped in another Magnavox ignition and same issues only worse, so I knew it was the ignition module. Swapped in the Delco ignition Module/Coil Pack and all the issues are gone.
Car starts quickly, doesn't "rev up", and no bucking. And the benefit is the Delco unit has higher output so it actually seems way quicker then before.
Well worthy doing...