I am preparing to rebuild my Lycoming IO-540 CIB5, and was thinking of going with 9 to 1 compression pistons (Giving me aprox 275HP) instead of the stock 8.5 to 1. (260hp) My airstrip is short so thinking a bit more power would be nice. Wondering if this would be a bad idea? Also would I still be able to burn premium auto gas as an option if I wanted to?
Thanks.
Thanks.