I was looking at his L/C2 206/212@.050 110 LSA or L/C3 214/224@.050 108 LSA rollers or "the daily driver" 224/230@.050 on 108LSA I see VooDoo makes a similar roller to their 60902 HFT.
Also a narrow LSA makes more power, but at a narrower RPM range , where as the same grind with a wider LSA (higher number) makes power across a wider rpm range. My ( 389) 400 runs a CRANE cam with .454 in .480 ex lift 112 LSA (216in 228ex @.050). Its a 9.3 to one engine. It pulls hard right off idle to above 5500 rpm (forged rods of course)
If you are willing to swap out your converter then a 60243 with a 228/235 duration also on a 112 LSA would be more rowdy. I wouldn't step all the way up to the Crower 60919 RAIV clone unless I also went with the Rhoads variable duration lifters.
Solid roller cam from Bullet (from their recommendation based on what I was looking for) - 110 LSA, 251/257 degrees at 0.050, 0.620 net valve lift WITH 1.5:1 rockers.
LSA's of 110 to 114 are usually best for engines that will see street dutyas well as the occasional foray at the track. A wider lsa improves idle quality by creating more intake manifold vacuum and allowing less reversion. Intake Centerline: refers to the positon at which the cam is installed relative to the crankshaft.
A tighter LSA such as the 108° is more prone to detonation Not sure why the 66cc head purchase since the 74cc Kaufman heads would give some additional safety. I doubt you want to replace pistons so a head purchase with slightly larger chambers would be a reasonable choice.