Stop in for a cup of coffee

When I first got the Demon running with the cam in it, I needed to hold the brakes with both feet at a stop sign. It needed more idle speed than the converter would allow. I changed the converter and it was night and day with no other changes. Once that was solved, tuning could happen. I will try bumping the timing up, that is quick and easy. Thanks as always Matt!
Thanks. Thats interesting. Did not have any evidence that converters would/could add load or not in the very low rpm range.
I wonder if the car companies changed converters when they increased idle rpms late 60s early 70s.

I've certainly recall some cars would want to creep at fast idle in drive.