Ive got a 99 silverado i swapped a lq4 into. It has a comp 228/228 cam, 143 heads thats been shaved, lt headers, btr dual valve springs, and thats ablut it motor wise but i can not for the life of me get the tune right ive got it idling good and get ready to do some road testing then change something and just goes right back downhill ive read on here and bought and read books still no good information and everybody just keeps telling me the same thing which is to look at ve tables and maf tables which ive done no difference im running too rich and now it wont even crank without gas anymore im still completely lost so someone please help with something