What is the valve clearance on my car??

So when i got up this morning i decided i was gonna go out side to adjust my valves, only, i dont know what my clearance should be??
I dont have a shop book or any info on the car at all!!

Theres an aftermarket cam in the ol' 318 but i'm not sure what it is (the downside of buying a modded car from a "dumb" kid)......

would that change my clearance spec's at all??
I tryed to look it up :read2:, but no luck...

Thanks!!