Thats what I was thinking, I could skim the cylinder head to "up" the CR.

Kev., I wll look into throttle bodies !

The dyno will add �150 to this project. But if I can source the head soon, I can get it all done for free, as the Dyno "owe me" another 3hrs......

I'm still looking for a cylinder head tho......!hint! ..... anyone?

I can't see a Big Valve advantage, as I am retaining the Standard Camshaft, so I will just go for a nicely ported flowed head. There is someone not too far away who can do that for me.