Originally Posted by
koreanassasom
are the tapers on the OS plugs different then the O'donnell? I have a Jammin .28 if they are different can I use O'donnell on this engine thanks
i wouldnt use OD plugs in jammin engines, it wont run right, OS P4 is the way too go... or picco plugs are best.... the jammin engine is the only engine i wont run OD plugs in, i run OD plugs in all my engines except for the jammin engines...