Richer then rich

[69cortezsilver]

well my simple cylinder head swap has become a nightmare! Have a 350 sbc .60over, decent size hydraulic cam,airgap intake,holley 650dp,roller rockers,headers,and swapped the old camelhump 194 valves, for some sportsman 2 heads. put engine back together and its running extremely rich, its popping thru carb, and surging etc...tried air/idle adjustment and nothing...is it true after 1992 holley carbs do not blow powervalves? i guess i can rebuild the carb and see what happens, just dont know how a simple head swap has created so much of a mess, it ran good before and i did not touch the carb