How do you figure out what kind of camshaft is in the car without doing the following:
A) Pulling it from the engine and reading the part number.
B) Remember which damn cam you have to begin with.
C) Asking a fiend that does not remember.
you could search for sound clips and try to compare....but the only way to know for sure is if your friend finds the recipt or you pull the cam and look
You could also measure lift of the lifter/pushrod while turning the engine. With Hyd lifters this would be hard to do unless they were pumped up and holding pressure. with intake off you could measure actual lift of the lifter, as for duration, lobe separation, I am at a loss. If you really want to know, pull it.
Dial caliper with rocker/pushrod loose...you could measure peak lift. Do a search for lunati cams with that lift (ballpark - probably won't get it perfect) and see if it is the only one in that ballpark for 302's...
The head would need to come off though more than likely, so then you might as well pull the cam out...
Sound clips would not be a very accurate way. People's combo's are so different along with engine vacuum, idle speed, exhaust sounds, heads, etc.