4.8 carb tuning help

[Sweetc10]

Hoping someone can help me out. I got a 4.8 with a Cam Motion Billet Core 224/228 112+2 , holley dual plane intake, msd box timing set at 0 rpm 15° at 1800 34° down to 29° by 4400 on out. Rev set at 6500. Summit 600 carb with 66 primary 68 secondary. With 700r with 2400 stall. Phew. Thanks that's everything ,now issue. I have got the cruise down pretty good. Usually with hang around 14.0 to 14.6 but anytike you go full throttle it goes really rich and jet size hasn't made much different sluggish to. I have set the floats per instructaions little lower then half way in glass. At a lost do I jet the secondary down more? Any help would be greatly appreciated.