Cam shaft help!

[SLDPULR]

Hey guys, I need the advice of a engine builder. I am currently running the comp cams XE294H cam (part number 12-254-3). The motor runs great and has TONS of power all through the rpm range. I do however have a few issues. First problem is my brakes. I can only pull about 6hg of vacuum at idle. I have tried a vacuum canister but after about 2-3 brake cycles I am out of vacuum. I have visited with a vendor about switching to a wilwood master cylinder to fix that issue but I am planning on going to a Fitech 600hp power adder EFI kit. Which brings me to another problem the Fitech EFI kit will not work with my current cam shaft due to the choppy idle.

So I am looking for a cam shaft that will keep me at my current HP/torque levels, work with a EFI kit, and possibly pull enough vacuum to run a brake booster. From the research I have done I have not been able to find a cam that will meet all of my needs. So does anyone know of a cam that might work.

Link to current cam
http://www.compcams.com/Company/CC/c...x?csid=89&sb=2

SBC 383
BORE: 4.030
STROKE: 3.750
DECK HEIGHT: .025
CYLINDER HEAD VOLUME: 72CC
HEADS: 190CC RUNNERS
HEAD MATERIAL: ALUMINUM
GASKET THICKNESS: .032
COMPRESSION RATIO: 10.03:1
PISTON: FLAT TOP SINGLE VALVE RELIEF
CAM: COMP CAM XE294H
TIMING CHAIN: DOUBLE ROLLER
ROCKER ARMS: COMP CAMS ALUMINUM 1.5
DIST: MSD PRO BILLET/MSD 6AL
INTAKE: RPM AIR GAP
CARB: 750 HOLLEY DP MANUAL CHOKE
TRANS:TH350C
CONVERTER:HUGHES 3000 STALL
HEADERS: 1 3/4 LONG TUBE
EXAHUST: 3" WITH X-PIPE
MUFFLERS: 3" BORLA OFFSET/OFFSET
GEARS: 3.08:1 (I think they are 3.08, I will be swapping to 3.73 or 4.10 gears soon)

Picture for entertainment.....