[1968_K20_4x4]

So I installed my new carb yesterday. I poured gas down the fuel line untill the filter was full and she stopped taking more gas. I tried to fire up the truck and she wouldn't go. At first she cranked and sounded really good like it would go. It fired up and ran for a couple seconds then died. I poured some more gas in the fuel line and tried a few more times but it would just turn over but wouldnt fire. I checked and I do have 12v power to the distributor with the key on. So not sure where to go next with it.

My uncle has worked on old trucks for a long time. I usually try to figure stuff out on my own but I asked him to come down and see if he can help me figure out what's missing.

Thanks guys for all your help thus far. I certainly know a lot more than when I started. If anyone has any other ideas of what else to check please let me know. I'll update with how me and my uncle make out