That depends on what you consider a "precision manifold kit". There are several good kits that include a solid aluminum replacement for the stock "keg manifold" lower. The stock piece is stamped steel and the main cause of these leaks. The upper aluminum manifold and the lower sheet steel expand and contract at differing rates causing gasket failure. If the lower is replaced with an aluminum piece and a quality gasket, or welded, the chances of future failure is far less.
Front pass side of the intake manifold.
The EGR Valve is located on the intake manifold.
It should be stamped on the intake manifold.
It is between the alternator and the AC pump in the intake manifold.
any 225 sl6 from 1960-87 will fit car or truck as will intake .I have one no cracks call me 250-751-1652
Facing the front of the truck, it is located on the intake manifold on the right side of the carb.
Left exhaust manifold.
In front of the intake manifold on the coolant tube
look on the intake manifold
Most likely the intake manifold gasket is leaking.
It is on the left side of the intake manifold.
1996 chevy c1500 pick up 305 motor bolt torque spec intake manifold