I have a 05 silverado worked to a 6.2 supercharged lsa I am having problems with it running rich throwing codes po220 po175 po172 an when I get a about 20 mph it starts spitting a sputtering when given throttle below i have put everything done to motor plus new lsa injectors an new plugs any help would be appreciated
5.3
Melling hi volume oil pump 10296
Melling pickup tube
C5r timing chain
3 bolt 4x timing gear
Fresh 317 casting heads
VR .660 dual spring kit
Lunati valve seals
Ls7 lifters
MLS 5.3 Head gaskets
VR 5/16 7.400 hardend pushrods
ARP cam bolts
ARP head bolts
Trunion upgrade for stock rockers
VR custom cam 227/223 .614/.610 115+4 8660 billet core
Ngk br7ef plugs
Stock lsa injectors
Stock coils packs
Reinforced brick
2.50 upper pulley
Okw adapter plates
LSS front bracket kit
Sanden 508 compressor
Walbro 450 In tank pump
Magnafuel fpr return style
2 bar map
Ls3 card style maf
Zl1 iat sensor
2800 tci stall
ARP bolts