Hey guys, new member here! I picked up a 1981 International S1824 w/ mv446 4-barrel carb. 2 speed rear end. 28,040 gvw. Truck used to be a Fire Department tanker truck which is now converted to a dump truck. It's aparently had the transmission out of a bigger truck installed in it, but I have not confirmed whats actually in it. I'm going through the truck and changing all fluids, filters, tune up, fixing rusty brake lines and repairing issues as I find them. For some reason I'm struggling to find parts online and locally for cap, rotor, plugs and wires. I've searched all over the internet as well as 2 autoparts stores. Either they cannot find the info on my truck or it lists a different engine and the 446 isn't available. Does anyone know NAPA part numbers for cap, rotor and wires? Also what spark plugs are the best to use. .030 gap? Thanks guys! Love the forum can't wait to learn more and hopefully help some of you guys out along the way as I learn.