I've got a 1970 C10 with a straight 6 and I can't get it to turn over. I was using my truck about 3 months ago, it's been running fine for several years, and it started spluttering like it was out of gas. The guage doesn't work, but I was pretty sure I had gas in it. I added some more gas, but it wouldn't turn over. I talked to the guys at the auto parts store, and I replaced the fuel pump and filter. Still no luck, so I poured some gas down the carb, and it turned over and ran fine. I ran around in it for a while and everything was great. The battery wouldn't hold a charge, so I replaced it and figured I was in business, but it wouldn't start, not even when I poured gas in the carb. I have a felling it might be in the throttle or linkage. Any ideas?