no.
It varies from one engine to the next but, what you want to see is that all the cylinders compression readings are within 10% of each other.
Normal compression for a 350 Chevy engine typically ranges from 160 to 180 psi per cylinder, depending on factors such as the specific engine model, its condition, and the type of cylinder heads used. Variations can occur based on the engine's age, wear, and modifications. Consistent readings across all cylinders are crucial for optimal performance. If readings are significantly lower than this range, it may indicate issues such as worn piston rings or valve problems.
8.5 to 1 compression is factory stock.
The compression ratio of a 350 Chevy engine usually ranges from 8.0 and 9.0 to 1. This provides a good balance of fuel economy and power.
unfortunately the Chevy venture is known for have many of the sensors going bad. I have a 2000 Chevy Venture that gives the wrong readings for everything. I never know where my gas level is until it is actually 'empty'.
Compression ratio on a 1974 Chevy 350 in a Nova was 8.5:1.
then youre running about 8.5:1 compression
About 8.5 to 1
100 lb or above
10.5-1
Does it have fuel, spark, compression?
Compression test