Any engine gurus on who can advise? Lyc O235 L2C upgraded to F2 specs (9.7 pistons etc.) Original plugs are REM37BY. They are all good. Are these acceptable to run in the new to be F2 w/ 2 mags and occasionally on auto gas. ??
 
Any engine gurus on who can advise? Lyc O235 L2C upgraded to F2 specs (9.7 pistons etc.) Original plugs are REM37BY. They are all good. Are these acceptable to run in the new to be F2 w/ 2 mags and occasionally on auto gas. ??

No auto gas with anything over 8.5 pistons.

Carl