Leaking Venturi Boosters / Edelbrock Performer 1404

Funny you mention all this overheating stuff as just when I thought I had everything licked I fired up the car the other night and noticed it started spitting a little fuel out of the passenger booster again! Noticed the car was running hot and the radiator was cold! This is the first time this has happened so I don't know if I have a bad thermostat or whats going on now. When I squeeze the bottom radiator hose I hear the thermostat make noise in the housing so I am suspect it has gone bad.

Exhaust Heat Crossover Passage; Car has an Edelbrock intake manifold so would that still apply?

Where is the Flapper Valve located on the exhaust manifold?

rumble has pretty much covered it. All street-style Edelbrock intakes have the X-over passage.

If you still suspect that heat is causing the dripping fuel, run cool water around the carb base to see if that stops it. If it stops, then I'd suspect heat in the carb base is your problem.

Below is a pic of the bottom of an Edel. intake. Area inside yellow circle is the exhaust heat x-over passage.