MBHD - Yes it had a flare on the end on the fitting in the pan. I don't know much about it but it doesn't leak so I'm happy.

IIRC, it's supposed to be like 650rpm I think.

Tom - I have 8 degrees initial (without vac advance hooked up). Not sure what the mechanical is so I can't tell you the total timing.

I've tried fixing the stumble by adjusting timing both ways and disconnecting the vacuum advance and none of that helped at all.

Vacuum advance is hooked to manifold vacuum.


69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.