Engine compression?
 

I know its probably a newbie question but just as my title asks, what is the comprssion supposed to be in my 93 fd? If you could let me know that would be great.

FAQ question #28: https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/

If you want more details, a search for 'compression numbers' should give more info.

120 = new
100= good
80= minimum
<75 = living on borrowed time.