stim141

Have to remove the center firewall to install the cowl drain. Removed it the hard way but figured out you havr to remove the center portion of the firewall to get it in. To do it I have to remove the vac line going from the manifold to the booster. Does the elbow fitting going into the booster just press in or is it clipped/screwed? Or is there some other trick? Would prefer to remove it here rather than at the manifold which is more likely to leak.