[LoBelly]

thanks for that Woodz - my suspicion is the same on the exhaust - only measured the one (in mm) and then worked it out later - should have measured more, but I suppose the bottom line is that a new cam is in order.

id be grateful if you can get the older Crane book out - I suppose the key part is the ratio, the rest doesnt matter but it might give me an idea to the quality of the other components (cam notwithstanding)

ta
LoBelly