PI cams vs. NPI cams...size difference?

[68mustang5.0]

So whats the size difference between the NPI cams and the PI cams? Just curious because i picked up a set of 2001 PI cams, now I just n eed an intake. What if i did the Comp XE27AH cams with the PI intake....would i see the same gains?

 

[97_SN95GT]

The 270's have a radical idle and you need to change the valvesprings because the stocker wont hold up with the 270's. The stock PI cams and 270's are completely different. Go to videos.streetfire.net and search for Comp Cam 270 and listen to sound clips. Hope this helps you out

 

[Pennywise2]

Comp 262's would be my choice for NPI cylinder heads.

 

[svtboy]

http://www.crower.com/cat/domestic/ford/mustang_camshafts.shtml