The Stovebolt Site Forums Welcome! Welcome Centre Do It Yourself (DITY) Gallery 1946 Chevy 1/2Ton in Utah - "Here We Go"

I'm not sure what you mean by "add a second gasket."

Are you talking about stacking two carburetor base gaskets on the intake manifold? What will that accomplish?

Is your throttle linkage getting stuck or something and not returning to full close position when letting off the pedal? Lubricate all points in the system with lithium grease at the pedal and linkages. Make sure your pedal /rod isn't binding at the firewall.

Make sure your manual throttle cable has an 1/8" standoff/slack when the throttle button is pushed all the way in to the dash. By that I mean there should be an eighth inch of space between the top of your cable nut and bottom of the throttle rod when the throttle is in the fully closed position and the button is pushed all the way inso that you have to pull the cable slightly out of the dashboard before the throttle moves.

The first picture shows a 1/16" gap. The second picture is hard to see but the gap is a little more than 1/16". Just make sure that when the throttle is at full closed position that there is no tension at all from the throttle cable.

If the throttle spring is not pulling the linkage all the way back to the home position when released but you can move it to the home position manually, replace the spring with a stronger one.