My review of JDM:

[95PGTech]

Got the answer - Jim Sr. likes to see new cam phasers put in at the same time as the cams - in 2008 alone, there have been three part number updates to the cam phasers - more than 20 since they came out in the 2005 model Mustangs.

 

[PiggySmallz]

Got the answer - Jim Sr. likes to see new cam phasers put in at the same time as the cams - in 2008 alone, there have been three part number updates to the cam phasers - more than 20 since they came out in the 2005 model Mustangs.

makes sense then

 

[bad06gt]

my experience with 2v cams is that unless you lock the cam gears down, the gear will attempt to turn therefor causing bad timing and bending a valve. Been there, done that. It's worth the extra effort to make sure you get it correct.

 

[don_w]

Got the answer - Jim Sr. likes to see new cam phasers put in at the same time as the cams - in 2008 alone, there have been three part number updates to the cam phasers - more than 20 since they came out in the 2005 model Mustangs.

Adam just put new phasers in mine too... precisely because of all the changes over the years. But I kept the stock cams.

 

[ZmanM3]

Adam just put new phasers in mine too... precisely because of all the changes over the years. But I kept the stock cams.

I actually think that the stock cams are pretty good, the only reason I got the Comp Cams is because I was over seas when most of my build was going on and my car was stored, so I got new heads and cams all together.