Yes, I ran the old gas near empty and put new in. All the bolts are tight, manifold and carb mountings. It does have power front discs (installed about 3 years ago) that vacuum hose is installed with hose clamps on both ends. Hose to PCV valve is snug on both ends. I’ve had the timing as high as 10 degrees while working this issue. For years it was set at 8 degrees (I thought it was 4, misreading the timing marks as 1 degree instead of 2). I moved it to six degree because Bartamos suggested that was spec and I wanted to base line the engine to solve the idle issue.
Lawman