Hi all, I just bought a 1937 international pickup. first of all how do I know the exact year, on the title I have it shows 38 but on a cab card it shows 39 and on a bunch of other papers it says 37. I looked on the tag under the hood it says -37 so my guess is 37. I started working on it, I cleaned points, plugs and got spark. tried to start it, it will sort of start and backfire any suggestions on why it is backfiring? is it timing or stuck vales? I wouldn't say it has amazing compression either which hints to stuck valves to me. it is a very clean truck with little rust, I was surprised it had electric windshield wipers in that year. any help is appreciated, if you all want more pictures let me know I would be glad to post some more (: thanks in advance, nick.