i need help on where to start! (carb setup)

It's a hydraulic cam - just happens to be using adjustable rockers.

"Set the throttle blades to expose about .025 of the transfer slots when you look at them with carb upside down, then screw in all 4 idle mix screws till they bottom out and then unscrew them all out 3/4 turn each...then disconnect the vac adv if u use one at all.and plug the vac line at the carb"

If you have trouble estimating .025 in the transfer slots, make them look square. .020 to .025" is a good number. If you have a micrometer, measure a piece of wire and use the wire for a gage. Otherwise use your eyes to make 'em look square.

Now, to be really smart - mark and write down the position of the slot in the adjustment screw. This way you'll know where .025" is without taking the carby off again.

Timing - the advance is hard to read in the middle of the slope! Take readings all the way up until it stops advancing. Probably between 2500 and 3500 rpm. You should also be able to take the rpms down (when oil is warm) until it stops retarding, but w/o knowing the inside of the distributor that can't be guarenteed. In any event write it all down and then you'll know the advance curve. Once you know it, then you can make changes.

Carb insides - If you really want to get into tuning it.
a. Get a copy of Urich and Fisher's Holley Carburators & Manifolds
b. Using miniture drills as gages, measure the Idle Feed Restriction (IFR) and note whether its been placed high or low, the Idle Air Bleed (IAB), the High Speed Air Bleed, and the emulsion holes along with how many there are and where they are placed. Also, whether the throttle plates have been drilled with air holes - if so how big. Might as well measure the Power Valve restrictions too while you're in there.