Im assuming these are static figures Voodoo.
Firstly let me say that there IS NO correct figure. What are you going to use the beast on? It depends upon you to a large degree.
How much camber gain will you have upon suspension deflection? Any?
Here is a little scenario for you. Take all your shocks off (or if using airshoks simply deflate them if you can reinflate them) and jack the beast to ride height both ends.
Start out with static 1.5 deg neg at all corners. using several jacks or whatever 'posture' the chassis so its leaning really hard into a corner (the compressed side as low as it would go if the shock fully compressed, the up side as high as it will go if the shock were fully extended) with all wheels still on the ground.
Whats the camber relative to the ground now? Still about 1.5 deg neg? if so all ok. If not, see what static camber it takes to get that approx 1.5 deg neg at full lean. I dont car what the angle of the wheel is to the chassis. Its it angle to the road surface which is important... make sense?
The posturing is simulating the worst possible angle for the car to be in.
At no time do you want the tyre to be at a pos camber angle to the road surface, front or rear. With some designs though this isnt possible without going to ridiculous static angles.
With the suspension correctly designed, you should know all this before you cut any steel. This process will help you check it after you have built it. How are you measurin gthe camber by the way?
Try this lil calculator....
http://www.racingaspirations.com/suspensiongeometry.php