perfect fit no ac on air pump 1992 to 96 f150 4.9 part number 790k6 duralast at autozone .. feels like 20 plus hp and torque low end and lot!!! more power at 3500 to 4000 . no check light so far, i removed the old air conditioning pump.. AIR pump left in place but not in service ....... highly recomended mod no ac or dummy pulley smog working is part number 930k6
update all is good no light ... this is wow big power change mod AAA someone needs to make underdrive Pulley Kits for the 300
Last edited by sam2007; 09-13-2010 at 01:06 AM.