ul94 has been around for a year or so (I've had the stc since last december), but yeah for high compression engines, it was 100LL or nothing. I'm hoping the stc

ul94 has been around for a year or so (I've had the stc since last december), but yeah for high compression engines, it was 100LL or nothing. I'm hoping the stc is comparably priced, $100 or so. this is really awesome. edit to add: for the non av geeks, an stc is a supplemental type certificate. it's basically an faa stamp that says, "this aircraft has been changed from when it was initially certified, but it's an approved change" https://en.wikipedia.org/wiki/Supplemental_type_certificate https://en.wikipedia.org/wiki/Supplemental_type_certificate