Edelbrock Air Gap on Magnum 318 Problems
What is the part number for the carb you're using?
Since you don't have a choke, does it have the same bog with a cold engine and when it is fully warmed up?
Is the initial timing (at idle) 16 degrees BTDC?
is there any difference if you have the vacuum advance totally disconnected and the port blocked off (on the manifold)?