holley systemax intake and plenum,70 mm tb,24 injectors,70 mm maf,egr delete,adjustable fuel regulator,255lp fuel pump.running rich till about 3500 rpms,sputtering,doggin out,gutless.at 3500 starts to clean up and go.i heard the stock computer cant adjust it right.new o2 sensors,cleaned iac,tps set correctly,timing correct,plugs,cap rotor all new.any ideas?need a computer tune?chip?24 lbs injectors too much?never heard of this.thanx