is there a way to tell comp ratio without pulling the heads.

Yes... But you probably don't want to buy the equipment...

http://www.katechengines.com/corporate_services/whistler.php

Your best chance is to go to a stock car or SCCA class race & talk to the tech inspector. Most inspectors have the equipment & know how to use it accurately... Now the trick is getting him to use it on your car...

i dont need to know it that bad. but there is dirt tracks all over around my place and ill bet someone has one of these things.

Compression test and cam knowledge are starting points. and you altitude

so it can be done at home with pen and paper. and thats another thing. i dont know how i can find the duration of the cam. i inherited this car and the guy that built it died so i have know idea whats inside. i know its had after market pistons cam and machine work.

As said pay one of the circle track tech inspectors to pump it up for you. In the meantime as said a compression test will tell you what your dynamic CR is and therefore what your gonna need for fuel which is the bottom line