I grew up with the Ford letter cams being the defacto standard of comparison. In fact, the E-303 and X-303 is usually still used as a base comparison. Lately I see many people saying the cams are out dated, and that any of the comp cams XE line will do better.
I'm not certain this is correct. Yes, the XE series is newer and perhaps takes advantage of newer design technology, but is that really better?
Some Dyno2003 results are showing the letter cams doing better than several offerings from Comp Cams.
I'm not certain this is correct. Yes, the XE series is newer and perhaps takes advantage of newer design technology, but is that really better?
Some Dyno2003 results are showing the letter cams doing better than several offerings from Comp Cams.