My turn for a build up post!!

[splatrd]

Originally Posted by sixty8c10

now I have a question, I got it started sunday evening, and stays running as long as I stand over it pouring gas down the carb. It has a new blazer tank in the rear new 3/8" steel line all the way to the new mechanical pump with an inline filter mounted under the cab. it won't pull the fuel from the tank. i have even gone so far as to prime the line. anyone else with the lwb trucks and blazer tanks have this problem or did you guys just go with a inline electric right off the bat?

I just completed a blazer tank install on mine a couple weeks ago and it worked without a hitch. Mine had a supply and return line on it, but not sure if that is specific to the '72. Also these tanks need to be vented in some way. I believe the original caps were vented. I would also check to see that the sending unit you used reaches far enough down into the tank to draw fuel.