Ok so here's what I ran back in 1990>

3300lbs@the line, '69 Cuda
440-6 block, 906's ported to around 260cfm with 2.14/1.81's
Team G dominator flange with an 850DP
CC. .650/.650 290@.050" SFT cam
2" f/wells, CR was under 10:1 on motor
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Suspension:- 90/10 fr, L/bars-c/overs
chassis tied
4.88's/14x32's, 8" 4800stall verter.
Car ran only once NA and went 10.71@125 which is a 6.76 1/8th
thats 531fwhp on track, trapped@6700rpm
that may give you some idea of things of where you are now
as I had similar stuff to you, the big thing for me was that cam, it ticked over at 900rpm and pulled real hard top end.
tie your chassis together for starters, back off and adapt down to a good 950DP carb and go again see where you are, I think you need more cam than you have, thats a street not race cam you have in their.