Inliners International Forums General Discussion Engines 230 performance enhancement advice needed

(Edited when I realized my first question was way off base)

Twisted,

Is the lobe seperation just the difference between the closing of the intake valve and the opening of the exhaust valve? (e.g. the difference between 55ABDC and 63BBDC for the mild Crane cam described above.)

All,

Are there any vendors for aftermarket 'hot street' heads for this series engine? Clifford sells a couple, but again they are too 'extreme' for me. Or would I just be better off having a stock head machined?