Assuming that the power data is from either an SRM or Power Tap, that are both calibrated correctly (I'm not sure on the accuracy of certain other meters yet, as i haven't completed testing them fully) and your mass and height were measured on calibrated scales and stadiometer, then 410 W at 67 kg is pretty decent.
this gives a power to mass^0.67 ratio of 24.5 W/kg^0.67 or a power to mass ratio of 6.1 W/kg. These figures are indicative of being a 2nd category road rider and higher. it's important to note, that some 'weaker' riders will be higher category and 'fitter' riders will also be 2nd cat as results (in RRs) aren't entirely dependent on either MAP (which you've measure) or power at LT or TT power (which you haven't measured). In the case of RRs (etc) peak power (sprints), tactical ability, skill, and plain old luck also plays a part.
a few years back i had the same MAP and mass, was a 2nd cat, and scored all my points in E/1/2 or 2/3 category races (the 3 cat only races i did before i upgraded i scored no points due to my dire sprinting 'ability'😉. this would suggest that this power is adequate for a reasonable level.
as an aside, for GB (male over 23) team selection (amongst other variables) you need to score 26 W/kg^0.67, which is 435 W for your mass, i.e. you're about 5% less fit than the minimum international standard.
if you're figures are correct, and you have rudimentary bike skills and can sustain a reasonable % of your MAP (70% or greater) you will rip to pieces all 4th cats (except those who have the same ability as you and are in a similar position to yourself, i.e. beginning racing) and most 3rd cats too
Ric