I found a leak on my TBI 350 that's in my 88 Suburban. It's the quick disconnect next to the distributor: Apparently these are prone to breaking off upon removal, which looks like a pain to fix! Any suggestions for replacing this? Should I replace it with the same part? I'm going to replace heater hoses and radiator hoses at the same time, and so if there's an upgrade to be had, I'm all for it. For example, can it just be replaced with plain heater hose? Or must it be hard line due to its close quarters with the exhaust manifold? Also is it worth hitting the manifold and fitting with some PB blaster or liquid wrench beforehand? Thanks for any help!