383 Wont Idle with new to me 800cfm DP. Idles and runs ok with Edelbrock/AFB

yellow rose said
No, it won't. Please stop repeating that error.

If you read post #1 he said 1800 RPM was his Idle speed, That is high enough to pull fuel from the boosters and if the vacuum is low it will pull extra fuel from the PV if the PV is under that vacuum.