i did a compression test while swapping the headers.

1-160 3-165 5-165 7-160
2-160 4-165 6-170 8-160

How do these look for a 350 tbi out of an 88 truck???

 

that looks pretty good. i am not sure which way it is but generally if all numbers are within 10 psi or 10% you are sitting fine.

from what i understand there is no really standard numbers because there are so many variables that act on compression numbers so it is mainly relative to the other cylinders.

 

Yup; perfectly fine, pretty typical.