Thank you for the reply, the fuel tank is vented. I will have to make a fitting to measure the fuel pressure at idle. Under throttle it performs fine.
The carburetor can and has idled the 194 at a steady smooth 500 rpms in gear, but after a long drive it needs help at the traffic light. It's not a problem every single time but enough to establish a pattern. (70 to 80% of the time)
Kind of bit with the idea the the "rebuild" has changed something fundamental. thinking about trying a different BV on the engine.
What are the chances another carburetor will have the same idle problems?
Oh yeah I plugged the PCV to check for excessive vacuum loss, it didn't make a significant difference.
What does it take for an engine to idle comfortably at low rpms?
thanks for the help
