a 1973 Chevy truck has HEI Answer And if it does have points, say not the original engine, its .018-.019 will do.
Chevy's 427
No
The recommended oil type for a 1973 Chevy 454 engine is 10w-30. This provides a good balance of lubrication and viscosity.
You have a 1973 nova 350
The engine sizes for the 1972 Chevy Cheyenne included the 250, the 262, the 292, the 305, the 350, and the 400. The 454 was also offered for the 1973 model year.
Sounds like a vacuum leak.
73 Chevy 350 firing order: 18436572 countercockwise
At the front of the engine, to the driver's side of the harmonic balancer.
1969-1973 chevy 307
what maniofold are you asking about? intake or exhaust, and what kind of engine do you have?
Hook up a dwell meter and turn the 1/8" hex screw on the point set to achieve 30 degrees dwell. (Engine running)