Anyone using an OS90 lately?
rbort,
How's that gasser going? Boy that thing must have done some hours now...
Like you've said, the 91's really get mad if you run them lean, mine seems happiest when it's running rich.
I run 10% and have tonnes of power, I've heard they don't like 30% which is good cause the fuel economy I get on 10% isn't flash so I'd hate to think what it would be on 30%!
Si