Recently I've had reason to look into the gritty mechanical details of high-displacement aero engines in general and the Allison V-1710 in particular. All sources broadly agree that the V-1710 (excluding a few late-war models) generated its maximum power around 3,000 RPM, that it utilized a...
Terry the Wildcat's post count is at 39,997! 0,005% of which made somewhat sense! Bring his vichy water out and let's get the party started!
Here's to another 40,000 sober-ish posts, ye auld fart!
I would look up climb rates on Wiki but we know how inaccurate Wiki can be. So it's a race to 40,000 feet. The only rule is the plane has to be war time production (no jets), it takes off, hits the throttle and climbs, full power.