Valve sizes and issues?

Wondering about valve sizes in 920 Ms Peel with 750 CHO head and stock valve size though they're Dreer's 6 mm K/W kit. I will of course see how that works out natural and boosted but if wanting a bit more wondering what the worth of bigger valves give. Bigger valve flow more but transfer heat less so exhaust is prone to failure or detonation source especially boosted, but boosted engines gain more enlarging exht valve &/or by cam lobes leaving it open more than intake. But i don't know if I'll like the Drouin for most my riding so would love some extra response when blower belt disengaged or removed. Peel has upper end of aggressive cam in case that matters in valve size and displacement discussion. What would the real builders do? I hear by a number of Drouin users it messes with Cdo's fling-abilty somehow so one reason i may not like it just tooling around but still might like a bit of wheelie passing power now and then.

Save your money. Buy something that works already. Somebody called Fullauto might be able to help your inadequate power problems.

Valve envy. :lol:

Where can I find a discount coupon for a Fullauto head? :roll: