Originally Posted by NChatch

but as you can see the higher the numbers jamie the better the chance of your compression being closer to where it is supposed to be, now was the compression calculated for your motor based of a vtec or non vtec head? headgasket? this is also where some of it gets tricky. but with numbers like 270 i would say its pretty close. was this done with the throttle held wide open while cranking the car over???

funny my civic only reads 155!