You will need to replace the intake gaskets to fix your problem. The HEAD GASKETS will not be your problem.
most likely an intake gasket
a bad head gasket or intake manifold gasket.
The Intake gasket is leaking, NOT THE HEAD GASKET. Replace the intake gasket
That would probably cause it to run lean.
You need to replace your intake manifold gasket. Chevy had a bad problem with these gaskets.
That is a common problem with the Vortec engines, First place the gasket is not made of much as you can see. Antifreeze eats the gasket up over time. The ORANGE antifreeze is BAD. If the Intake was OVER TORQUED that will cause it to leak/ Go bad too.
intake gasket on rear of engine on top between intake and block 302's leak there alot
I'll assume Lower Intake Gasket, since they tend to cause vacuum leaks. Get a manual from Autozone and expect about 4 hrs labor, you need to take off the upper intake manifold just to replace the Lower Intake Gasket. Probably should change/clean the PCV valve while ur in there. Good luck, man.
antifreeze leaks by the intake gasket into oil. deteriating bearings causing oil to leak by the bearing
it could be a head leaking or the intake manifold, if its coming from the very top its most likely the intake manifold gasket
the answer is yes
No. The two things are completely unrelated.