On the fuel pump:
https://22reperformance.com/22r-fuel-delivery/fuel-pump-mechanical-for-carburetedYou can get them from a few different places but you want the OEM Kyosan pump. I burned through 4 or 5 of the after market brands before I finally bit the bullet and bought a good one. It would have been cheaper to buy the right one on the first place. Last aftermarket pump I ran stranded us with the top off on the way to church next to a marsh with the most vicious swarm of mosquitos I have ever encountered in my life.
On the BVSV, you want it to switch over from one port to the other when it heats up. You can test this by blowing through some vac lines into a jar of water. You blow on the port where the manifold vac hooks up and see if the other two will switch over when the temp changes. The bubble should switch from one line to the other. Pretty simple really.
