OK - stage 1 & 2 DNA filters work great. Got the power commander V hooked up and used the m22-020-502 map - seems a bit sluggish... maybe running too rich. The PCV install guide recommends leaving a series of values unaltered 2500rpm to 7000rpm up to 20/40% throttle (I assume leave at 0) but the maps are basically all set at 9. Am I playing with fire if I change them back to zero and save as another map? Only found 2 PCV maps online.