Stock fuel tank question ?

[54blackhornet]

I am working on getting a 71 GMC back on the road after sitting for 6 years with a 3/4 full tank of fuel ! Boy what a smelly job ? My wife says I still smell like bad gas 3 days after getting the tank out. I learned that if you put a lot of grease on the filler neck rubber when you go to pull it out, you can reuse it again. The inside of the tank has a lot of rust so I would like to use a 1970 tank I have that is clean, My question is what about the EEC lines on the 71 - 72 tanks ? Can you block them off or connect them to use a 70 tank ?
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