I have a FPS and KE Question on my set up!!!!!!!!!

I am shooting a Martin Saber 06 Modle with Dyna Cams.I only have a peep like the G5 Meta Peep and some Spiders on my string, I cranked my bow up tp 70# the IBO rating is 300 fps.I am shooting a roughly 5.49 GPP arrow, I am a 27" DL and shooting Easton ACC 3-49's and they weigh 385 gr total arrow weight. I figured this out bye Easton Spec:
Also what kind of Ke am I getting?
3-49 arrow ---8.8 gpi= 237.6 gr
Insert ----9 gr
Bushing---6 gr
Nock-------7 gr
Point------ 100 gr
Blazers---- 15 gr
Arrow Wrap -10 gr

____________
384.6 gr Total arrow weight

What could I expect for a FPs with this set up. I just went out and shot and my bags are barely takin it.


Thanks Matt