RE: San Diego gas fridge repair & buying solar & batteries?
I'v had real good luck at San Diego Trailer Supply for parts and have never heard anything bad about their service. Also there is a shop on Broadway between first and second sts on the north side of the street in El Cajon that I've had good luck on parts, hope this helps
RE: Dang fuel leak on 454
Does the square box you refer to look like this:
http://www.jegs.com/p/Holley/761151/10002/-1
From what the op wrote I would say the diaphragm in the pressure reg. has gone bad.
the diaphragm can be bought for less then $15.00 at any of your better parts houses.
I bought one a couple of months ago at car quest for around $13.00 it's very easy to replace the kit also comes with 2 springs just make sure you install the proper spring:)