Hi Matt and Gang 57 300C's cam specs as follows: Duration, intake 280 deg.; exhaust 270 deg.; overlap 60 deg.; valve lift, intake .444"; exhaust .435". I would increase valve lift if you want a few more pony's. If you do that must check piston to valve clearence,(ptvc). You should have no problem maintaining min..060" ptvc. Any cam grinder can duplicate this spec. Isky, etc. Gary The Parts Doc -----Original Message----- From: tooth1965@xxxx [mailto:tooth1965@xxxx] Sent: Sunday, September 09, 2001 10:14 AM To: chrysler300@xxxxxxxxxxxxxxx Subject: [Chrysler300] 392 CAM I'M LOOKING FOR AN ORIGINAL CAM FOR A 1957 300C 392 HEMI, CAN ANYONE TELL ME WHERE I CAN GET ONE? ALSO LOOKING FOR THE DRIVERS SIDE VENT WINDOW FRAME. THANKS