car idling

My car as of late seems to idle higher than normal in neutral. It idles @ 1000 rpm in gear and @ 1700 rpm in neutral. Do the air bleed screws need adjusted or a power valve added? My combo is:



360 (30 over 9.5:1 compression)
750 holley DP (Jets are 82/84, Squirters are 31/31 and both power valves are blocked)
340 victor intake
Mopar .533 lift cam
4500 stall convertor