[1968_K20_4x4]

So I finally got the truck running! When my uncle came down yesterday we traced back and found the problem... the sending unit was clogged! I had blown out the rest of the fuel lines but didn't think to check the sending unit. Cleaned it out and when we put it all back together she fired right up! Thanks again to everyone who responded, I learned a lot from all your replies and now thanks to your knowledge and help there is one more old chevy truck up and running! Lots more work to do ahead of me but I couldn't be happier with this progress. You guys are awesome. Thanks again