Whether you do it through the valve covers or elsewhere, yes the engine needs positive crankcase ventilation.
It should be on the valve cover.
NO
If you KNOW that all the plug wires are on the cap and spark plugs RIGHT and that the engine is in time then remove the valve covers and start the engine back up and make SURE that ALL the valve springs are moveing up and down while the engine is idleing. Be sure to check them close. If they are not all moveing then you need to REPLACE the cam and lifters.
How do i remove a heater core to a 1974 chevy impala?
A 1974 Chevy Impala frame would work
YES.
The pcv valve is located on one of your valve covers.It will have a black hose running to your air breather
It's lean.ANOTHER ANSWER:Or possibly it's valve float.Try to find an exhaust gas analyzer to see if you're running too lean, if that's not it you may have some valve springs that have become weak.
I have a 1974 nova and my has 15 gallon
The fuse diagram for a 1974 Chevy Cheyenne truck can be found in the service manual. It details the location of each fuse and its purpose.
No it will not, Not even close.
Nothing.