Timbawolf.......OK now ya gotta knock off another 10fps or so for your string load.
Takes the original speed guess down to about 230-235fps.

If you want to try a 350 gr. arrow you are now only giving up 85grs vs a 5gr/lb of draw 265gr arrow. that translates to an additional speed loss of around 30fps. this would take you to 268fps, but then throw in your stated string load and you could probably expect about 255-258fps. with that 350gr arrow.

In any event you have enough KE to get the job done, just shy away from mechanicals and look at a good fixed blade or replaceable fixed blade broadhead and you should have no trouble at all.

If it was me shooting that set-up I' d personally lean more towards the 400+gr arrow range to pick up a bit more momentum....every bit counts when you are a tad on the low side energy wise.