Ok you can try this open your hood, take four pieces of string, run a piece of string from your cowl to your grill on each side of the blower. mark where they end so you can see the marks with the hood closed. do the same across the front and back of the blower to each fender. remove the strings , closed the hood as much as you can. put the strings back on over the hood and you should be able to tell where the blower lines up in most cases.