Installed sdpc el Chapo cam 214/221 duration with 108 lobe separation hell cat lifters new push rods new 660 springs shorty headers sent the ecm to livernois to unlock had my tuner put a base tune in it'll start easy every time cold after it warms up goes super rich chokes up dies an hard to start back unless you give it throttle changed the IAT the O2 sensors an plugs again but still getting same codes an issues