looking at your jets seem a little low to me. in comparison my 440+0.055 with a M1 plus 1" open spacer and 825 mighty demon is jetted F78,R92 and when i run a Prosystems 1000HP Holley based carb is F84,R92 i do race with an air plate sealed to a six pack scoop motor is 10.78:1,258/258 solid flat tappet 3/8 line for my motor was good with a holley black 150 pump to mid 11.3's then needed -8 lines good luck
Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive