Just as slow as before my mods..

Let's focus on getting the linkage fixed, then move to next steps.

I know you're frustrated., I've been ripped on an old car I really wanted to enjoy, too. I don't know enough about tuning to help, even if I was there. But, others are trying to help, and they're getting frustrated, too.

The carburetor linkage was suggested, tested, diagnosed by follow up photos and then validated by multiple opinions. Before continuing into timing and compression testing (more diagnosing), correct the linkage issue.

If there is still an issue, THEN everyone look at, and work on, timing...you don't have to go through multiple pages of posts for all the things to do, if you just pick one and do it.