Off topic, but related subject matter...

[Terry Faugno]

>I think it was Renault (?) that developed a pneumatically operated valve
>system for their F1 engines some years back.  Don't know much about it or
>how successful it was.
        All righty then! Thanx for the lead. I've cruised to several Renault
sites and dropped a few enquiries about. Should be interesting to see what
kind of response I get.
                Thanx,
                 Terry