I would stay with the slant, unless you are planning to upgrade the trans, and rear, also. If you were happy with it, before I would not go crazy with it. Maybe bore over size (if necessary) definitely increase the CR by milling the deck and/or head. More cam to help it breathe.
Thanks Charlie, that’s where I’ll probably go. I can’t really find any info or discussion on the 198. Seems like maybe it would be a decent compromise between the zippy 170 and the long stroke 225. Hopefully be a fun little ride.
