Hanging idle

[bottlebaby91]

Since a took the motor out, put all new gaskets in, got heads ported and polished and back together, the car does not want to come down to a good idle. I have adjusted the tps, adjusted fp, reset computer, checked for codes and came up o2 sensor lean bank 1 and 2. It is not running lean, it is running rich, the o2's says lean which makes the computer make the car run rich. I have spent numorous hours searching for vacuum leaks and cant find any. The last time i adjusted fp, when i took off the vacuum line for the regulator, some gas piddle out. Should this be happenig? The idle comes down to about 1600, than runs down to 1200 and than down to the proper idle. I have adjusted timing, tried "clocking" the maf w/ no luck. When the motor is cold it comes down to idle w/o a problem. I dont know what to do. Any comments/suggestions are thankful. Sorry so long, but kinda needed to let everyone know what i have tried already.

LIST OF MODS: Engine: 5 liter

-Transmission: T-5 with Ram Powergrip Clutch

-Engine mods: bored .030 with Arias 10:1 Pistons, ARP main cap bolts, ARP head bolts, Edelbrock gear drive, Moroso 7qt oilpan

-camshaft: 286/294 duration @ .050 lift ???? forgot

-heads: Trick Flow Twisted Wedge 2.02/1.60 valves, 7/16" rocker studs w/ guide plates, Crane aluminum roller rockers, ported and polished

-intake: Edelbrock Performer RPM EFI with 70mm throttle body, 30lb injectors, 80mm C&L Mass Air

-Exhaust: 1 5/8 full length headers, H-pipe, flowmaster 2 1/2 exhaust

-Gears: 4.10:1

-Misc.: 3-row radiator, underdrive pulleys, electric fan, Hurst Shifter, Autometer Gauges, Lakewood Bellhousing, SVO Aluminmum Driveshaft, 255lph intake fuel pump, 80psi inline pump