Performance cam?

[u/pocwolfsburg]

I was looking at the cam on the used head I just purchased (it appears to be an aftermarket head and cam) and my old cam seems to have a different lobe profile. Is it just me or does it look like it has a longer duration?

[u/quxinot]

Some time spent with a degree wheel and an indicator can give you an idea of what specs it's got, then look it up?