Bought a bunch of stuff to fabricate my air intake tubing, filter, etc. I ended up with a cone shaped filter from Spectra that is oil-impregnated. Going to enclose it in a box with an opening underneath behind the bumper. Then I was reading the instructions that came with the GM engine harness and it says to use a dry element filter - something about getting the proper fuel needed or something (don't have the instructions in front of me). Is that a big deal?