I'm some what confused here, I've been reading as much as I can about this and from what I've read 2.02 valves hurt port velocity and that's what I read to get to my goals. The engine will probably never see more than 5,000 rpm's.
As you may notice not everyone agrees or puts different value on it, everyone agrees velocity is important but some super focus on this one aspect and willing to sacrifice everything else for this one component of performance.
Do you actually know how much velocity you need? Or if any of these things like 2.02 valves are exceeding this velocity, and if are is the another benefit that might out weigh this loss if there is one?
Not saying you need 2.02 but I definitely wouldn't afraid of using heads with them.