750 big bore carbs

[jpdevol]

The red curve is the inlet valve, blue exhaust. And Clive only gave me the cam lifts, being 0.320 inlet, 0.314 exhaust. With the 6 & 12 thou respective lash, the inlet & exhaust valve lift should be 0.400 & 0.386, but I'm getting 0.401 & 0.407. Note: the zero lift points on my curves are the locations where lash has just been removed and the valve is at the start of opening.

Ah....in that case, it appears - to me - that the cam is perhaps 20* (2 teeth) too advanced