The internet can be a great tool and I have used it to help me build this engine. Enjoying playing with my car with my son and daughter. I just bought my 66 last year and have been out of the car scene since I was about 25. I was running this cam in this engine before the rebuild with much lower compression and horrible quench. In looking at the old L79 cam specs, it had HUGE adv duration of somewhere between 305 and 320. I understand the ramp profiles offer an advantage on the XE line to get great filling while according to some offering a disadvantage with wear and tear on valve train? 003" greater on the 280).The late intake closing is something I wanted, to get a touch less DCR. The 110 and intake centerline 106, are equal. While these two cams sound miles apart I am not sure they will act radically different. I understand that they are dual pattern and that their name is implied from their seat to seat intake duration. With all being considered the XE line of cams are much bigger than their name implies. The 280 Sounds like such a big cam as compared to the XE268. I find it interesting when we start looking closely at the numbers of various cams.
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