[RichardJ]

>>the gear link arms.<<

I assume you mean the 3-spd column shift arms? There shouldn't be any problem there. Any problem will be with the clutch linkage Z-bar. Other posts on this forum have also mentioned clutch linkage needing a little work.

>>Send a picture of the split I mean.<<

What do you mean?

I recommend removing the locator pins on each end of the head. The pins unscrew and have the same threads as the other manifold mounting holes. The 3rd hole in from each end originally had threaded studs, but are usually missing.
Installing threaded studs / nuts in all 8 holes will provide better sealing with tube headers and makes assembly much easier.