Here's the deal. Everyone says if you install larger injectors (Ex:SVO 30's), and have a ported Maf, you will gain more timing across the board, because you are usually in an over-rich condition after injector install. You then have to lie to the PCM that you are leaner. I always thought if you were telling the PCM you were leaner/less load, you would actually lower timing values, instead of raising them. Why and how is this true? Anyone have any info on this? <img src="graemlins/cheers.gif" border="0" alt="[cheers]" />