so i just installed a 6lb lower pulley on my cobra with a 2.81 upper. my issue is when i drove my car, once i got over 12lbs of boost my car cut pulled timing. Can i solve this issue with a tune? is there any other way of solving the issue? and plz don't tell me my blower wasn't meant to take it, its stage 5 ported with supporting mods. please fellow cobra owners help me