Discussion Starter · #1 ·
The passenger side exhaust manifold has a valve on the bottom section with a vacuum diaphram to open or close it. My first question is why is it there, what does it do? Is it to heat up the intake and then allow the choke to heat up? Second question is: is it opened or closed when there is no vacuum supplied? I would like to wire it open since I'm putting in a manual choke, but I dont know which way is open.