Spitting oil through tailpipes.

Max1196 said
Being "mechanical cam" , and push rod oil feed, what form of oil restriction/ control is in place? Using the SBC procedure as a comparison with the 2 thread in gallery restrictors.

I'm not sure Ironmike is running pushrod oiling. IIRC I *THINK* he is using Hughes rockers that are shaft oiled.

If it's in the pipes but not on the plugs it's probably exhaust seals. Can you post a picture of a spark plug? I'd like to see your tune up.

Also, you should have someone follow you and not if it smokes on decel or while at a long idle.