hey guy's any info on Fuel Boss/MITUSA mechanical fuel pumps?I just e-mailed mitusa for cost,spec. and install info. the info i have found it works like oil pump.how often do you have to change those out ?? I do like the fact that i would have a back -up fuel supply oe pump stays but not needed w/ mitusa system.when out west or up in canada hunting.if anything enough to limp back to civilization. any info will help thanks