ypnas777
20+ Year Contributor
- 301
- 1
- Feb 24, 2003
-
North Andover,
Massachusetts
Hi... How come for 97-99 7 bolts we have to do the CAS MOD??
Brian Crower's New Street / Strip Camshafts are designed for those looking for more power without having to upgrade the valve-train. These 272 cams will have a slight lope at idle and are designed to drop right in. 97-99 7 Bolt motors do require CAS mod for proper performance.
What exactly are they talking about??? what mod?
Thanks!
Mark
Some Cams require you to tap the intake cam for the 97-99 style CAS. However, Brian Crower intake cams come pre-tapped. The website I ordered from also had this note, it's not accurate. BC cams are direct bolt-ons and I love them

Or even the 272's
