I have a 71 Chevelle that was an original 307 car so it has the 5/16 line with the eec system. I need/want to replace the tank, change the line to 3/8, and new sender. Since I do not have all the eec parts I wanted to get rid of it all. Can I use a 1970 tank with a vented cap? is it that easy? I have seen some threads about problems with vented caps and drilling holes in them, what should I know? Any advise would be great!