Want this question answered?
My truck runs about 140 psi, but was rebilt recently. 120psi is normal for a truck with normal wear.
then youre running about 8.5:1 compression
around 80 ft.llbs. or higher is usually good.
head gaskets??? warped heads? did you have them milled?
150 LBS. per cylinder. If you hace more then 15 LBS. difference between any cylinders the engine will idle rough and not run good.
Compression ratio on a 1974 Chevy 350 in a Nova was 8.5:1.
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.
8.5 to 1 compression is factory stock.
the firing order for a small block Chevy 350 is 18436572
10.5-1
About 8.5 to 1
You will need to do either a cylinder leak down test or a compression test.