suggestions for 73 Dart 360

[67moparfan]

hi everyone, I am looking for suggestions to improve my 73 Dart times.

best of 10.89 @ 122 so far with:

about 2800lbs with driver360 stock borestock cast crank (but internally balanced)
Ross pistons (about 12.5-13:1, I never actually calculated it)
Eagle H beams
Mopar Purple shaft mechanical (not sure of spec, came with car)
Brodix heads with Mopar roller rockers
Mopar air gap
Holley 4150 950cfm (still untuned, I ordered a jet kit)
all MSD ignition (7al set to launch at 3500)
Ferd 9" with 4.88's
I shift at 6500, trap rpm is 7000
904 with Cheetah manual valve body
unknown brand 8" that flashes to 5300

the car is as I bought it except freshening the engine, decked the block( was .042" in the hole), new bearings and new carb.
and I added an alternator (voltage always dropped to 10v with lights/fan/water pump)

looking for ideas that wont break the bank.
I usually get 10.95-11.02's with 1.60 60ft (i dont have time slips with me)

my ideas are:
different intake manifold (but dont know which one)
roller cam (I know i'll spend about $1000 on this one though)

thanks for any input you may give!

 

[bOb shingler]

a tunnel ram and two 750's holleys, a big a$$ roller cam and have the heads race ported if they aren't already.

 

[moparmanestock]

Change gears to 4.56s and put 150 HP Nitrous shot on it!