Bitzco, your MPH and RPM numbers sound awful, especially for a (well) fuel injected engine. If you were to prop for that altitude, I'm sure you could do much better, but of course, you'd be underpropped when you head down to Powell - your choice. I'm gonna plead ignorance like Cal (except my claim is justified ;-) It does look like your gear ratio is different than mine (mine's closer to 1.25:1), so I'd expect you to have a different pitch on your prop. How much? Don't know, but the fact that you're at such a low speed AND low rpm indicates to me that you're pushing too much prop for the conditions. Not a little too much, a LOT. If you're at 4900 now, you've left 1100 on the table, and altitude or not, you don't have enough power to push that prop to proper revs.
Assuming the engine's in proper tune (developing the proper power), you could call ACME and say: "I've got this prop, and need to gain 1100 RPM, what do you recommend?" Don't even need to tell him it's an Epic or anything - he'd say something like, "well, you get 250 rpm per inch of pitch, so we'll drop you 4 inches, but you'll have to watch it when you come down from the mountains."
I'm not sure which prop turns faster, the one connected to a 1.25:1, or the 1.46:1. Basic question I can't answer. Might want to look at the tranny ratio too - not sure if they messed with that too.
