Gonna work on syncing the throttle bodies when it cools off, Might as well replace the vac lines. Can't find what size they are anymore are the 5 or 6mm lines?
I use 6.3mm or 1/4"... braided fuel line.
they are 6mm stubs; I used 5mm pipe because it was a tight fit.
Use 5mm silicon VACUUM TUBE as the 6mm will eventually kink on the tight curves. Also the 6mm will loosen at the stubs.