Brake Improvements - Looking for thoughts

yeah, i'd say try the power stops and then reevaluate where you are.

you should still be able to lock the fronts up though. the rear discs should be enough to haul down that tire too. and those pressures seem in line with what would be considered an acceptable range.

is there any peripheral components in line that may be affecting the flow/performance: metering block, bump valve, etc? are the drops rubber or SS aftermarkets?

this may be a case where you need a bigger master because you need to move more fluid. but that's a whole bunch of math i don't want to do.