After changing my transmission I was resetting my distributor cap and I couldn't find any connection to the Vacuum Advance? I pulled the cap during the transmission change so it wouldn't get crushed when the engine tilted. When I put it all together I cant remember if it ever was hooked up? It ran great as I had it professionally tuned but I cant find any disconnected hose anywhere? Either it fell off in the process or it was never there? Any thoughts what may have changed?