I have heard through the grapevine that Leo's engine has been having problems w/the deck surface.
Head, not sealing good to the deck, deck surface problems? Something to that nature?? Can't confirm that though.
With the head that Mike Kirby had(12 port aluminum) , you could have the ports small,(as thay come casted) install small valves,make different size chambers & so on, so ,if you want you could have the intake ports small cc volume(as they come casted) or opened up large.
If you wanted it to flow 200 CFM thats up to you.
250 CFM, 300CFM, & so on, it could be done with this head.
So it could be used on low performance applications or full on drag race applications.
