360 la

hi guys...ive recently built a 79 360 la..030 over.. kb 107s..340 j heads 2.02..comp cam cca-cl20-600-4...486/473 lift,279/296 duration,,,edelbrock performer intake..625 street demon carb..headers..msd rtr distributor...royal purple break in oil..2000 rpm for 20 minutes...now 10-30 havoline with zddp added...727 trans....i cant seem to get this thing tuned at all...timing set at 10 degrees before...adjusted timing ..adjusted carb...idles bad....not like a good sounding cam...any ideas on getting this thing to act right?..its in a 74 dart...8 3/4 with 3.23's...