A/C spark plug is---R44T and the gap is 0.035
( .035 inch ) for a 1972 Chevrolet 350 cubic inch V8 engine
drivers side behind the block at the firewall and to the side of the dist. or at the oil filter just in front of it.
The 1972 Chevy 350 has about 270 horsepower stock. This engine can be modified to put out up to about 800 horsepower.
points .035 HEI .45 Rick ASE L-1 Master TransMichigan.com
if its not an electric dist. than theres a metal "door" on the side of your dist. the point above it is the first point.
The oil drain plug on a 1994 Chevy 350 is on the underside of the motor. Look for a bolt in the very center of the bottom of the engine.
It will not work, but it will likely bolt in. The 4.3 is a very close relative of the small block V8
About 8.5 to 1