Cam Swaps...discussion

Im thinking about swaping my 95 KA cams with another pair...

I have heard that stock 95-96 cams are 232 (exhaust) whats the intake duration on the 95-96?

91-94 duration is 248 (exhaust) and 240 (intake)

Altima has an intake of 248 anyone know altimas exhaust duration??

So if i swap cams from Altima into my 240 thats easy 22hp...

i have a couple qs..

1 95-96 Intake duration?
2 Altimas exhaust duration?
3 97-98 Cam duration intake and exhaust?

4 and does anyone know if all altimas have same cams? or different years have different durations?

What if i take 248 exhaust cam out of a 91 240 and 248 intake cam out of a Altima... would that gain me power? or should exhaust have a slightly bigger duration compared to intake or intake should have a bigger direction than exhaust???

Im thinking doing this will help my car be more Rev friendly, and supposedly i hear these cams would be upgrade for a turbo later on...
i just dont feel like spending $300-$400 on cams