I was trying to keep you in suspense. 1971 340 stock. I have heard that some of the new ones only last about a year or two and some leaked out of the box so I am trying to get some good experiences people have had. This is for a stock resto car so a regulator won't work for me.
If you can FIND the Carter HP mechanical pump, they are really good. They seem to come in stock in waves. Summit usually carries them when available, but I've not looked in a while.