I have a 421 cub I'm parting out list of parts and prices below let me know if your interested I will be posting pics tonight
Cheetah 4mill cub cylinders polished, unported, run with a 4 mill crank and 68mm piston $700obo
68mm blaster pistons for a 4 mill cub $100obo
Pro design cool head with custom cut alky domes, 17cc $150obo
4mill hot rods crank/rods $350obo
Set of Mikuni 38mm alky carbs setup by KnT, polished bodies, nice power jets, carbs are setup and run perfect, one could use a new bowl but it's up to you, carbs come with K&N filters $375
All parts do not include shipping text/email me for any info or more pics. All parts are in very good condition and made good power and ran great. Thanks