I bought a 1986 toyota pickup from someone who brought it from Ohio. I need to find a way to get the a HAC kit (part No. 04215-35100) in order to do the high altitude modification it needs in Santa Fe, nm which is over 7,000 feet. What to do if I can't find the kit? The gas milage is terrible..like 10 to 12 miles a gallon. A 4 cl engine should get much better milage. I have the manual for the truck, it says to get the above mentioned part.