the fule pump was an upgrade for a mustang i know that for sure.. well i go tmy car back today ..its running smoother now.. havent gotten a chance to see if the MAS gut job has worked but its a long drive to work tomarrow LOL ill try it then that is if i see that dam CRX.. well any ways back to the topic.. so you say a leak would cause the buck too.. well i know i need a new exhaust manny gasket and a down pipe gasket too soo ill replace thos too and see what happends hey john how did you do the 2nd gen mas mod? thanks again