That year I believe still had a mechanical fuel pump on the right bank(passanger side)towards the font of the engine and it should have a steel line going to it and from it, check for rusted out lines and replace with steel lines, rubber is to iffy being its really close to the exaust manifold, and replace your fuel filter on your carburator( the line comming from the pump to the carb on the carb).
You will find it on the BACK TOP REAR of the engine and it will have 9 rubber wires going to it.
The A/C low pressure switch is normally on the accumulator (round silver can with rubber jacket, located in the right (passenger side) rear corner of the engine compartment. The connector on this switch often causes problems.
bad hose like a pin hole or bad clamp
The engine air filter is located inside the air cleaner housing , on the passenger side of your engine compartment ( just follow the big rubber " tube " from the front of your engine , near the top of the engine , over to the passenger side of your engine compartment )
If it's leaking from INSIDE the firewall (away from the engine compartment) you probably have a leaking heater control valve or damaged heater core.
on the passenger side of the engine. you can see it from the top and it has a rubber boot on the forward end.
Depending on how bad the leak is, not long. You could starve the engine for oil and ruin the engine, and the oil leaking off the engine will get on the rubber front-end parts and cause deteriation.( EX: rubber grommets). Plus it leaves a mess every place you park. Valve cover gaskets are cheap compared to oil!!
The oil leak is coming from the valve cover gasket and leaking onto the exhaust manifold, the rubber valve cover gaskets get hard from the engine heat and start to leak, you will have to replace the rubber valve cover gaskets to stop the oil leak
You need to find where it is leaking, it could be a loose connection, an old rubber seal, rust, etc.
Ac drain hole is plugged, go under neath by oil filter and unclog small rubber opening! This should fix it..
Find an easy place to work and cut the lines into and hook them together with a rubber heater hose a clamps.
Its located on the passenger side behind the strut mount on the engine compartment and it has a rubber cover.