PY Online Forums - Bringing the Pontiac Hobby Together - View Single Post - What am I doing wrong to get decent power out of a 350?

Stan Weiss · 05-29-2025, 02:30 PM

Quote:

Originally Posted by ericwoo

So here are the numbers. Oddly the cylinders on the passenger side were similar and the cylinders on the driver size were similar but the 2 heads were drastically different.

Driver side head

# 1: 160 psi
# 3: 165 psi
# 5: 160 psi
# 7: 163 psi

Passenger side head
# 2: 192 psi

# 4: 188 psi

# 5: 190 psi

# 8: 185 psi

I take it this a street engine and wants to run on pump gas. Looking at the Passenger side cranking compression numbers. Why would I want to advance the cam?

Stan