I know this is a common thing to try and turn the MAF 90 degrees towards the fender in an effort to fool the MAF into thinking there is lessair than there really is as too lean out the A/F ratio. I left my screen in and am wondering if this is still a good idea to turn teh MAF or not? The screen is suppose to straightened out air flow so would turning the MAF on its side still make sense? John DeMolet stated in a post that they tested that MAF positioning and they found that the MAF in the upright stock position worked best. Can someone help me out here? Does turing the MAF on its side have any negative effects?