Just so you know,
The XE256 is rated at 256/262/110 at .006 tappet lift.
Here are the events of the XE256, in at 106*
Intake; opens @22 closes @54; Exhaust; opens @65 closes @17
The durations are;
intake 256, compression 126,power 115,exhaust 262, overlap of 39*
At .050 the durations are 212/218/-5*overlap
Next
The factory 360-2bbl cam IIRC, is rated 252/260/111 at .008 tappet lift. I know of no way to convert this to .006 like the Comp. Maybe Wyrmrider has the specs. But I can tell you that I believe the Mopar cam will be bigger advertised at .006 than the Comp, also, at .006
Warning; I'm making stuff up here;
But lets gross it up by just 2* at each end. Then the 252 becomes 256/264/111 ~.006 tappet lift. If that is true, then in at 109* the events are;
Intake;opens@20 closes @56;Exhaust; opens @66 closes @18.
The durations are ;
Intake 256, compression 124, power 114, exhaust 265, overlap is 38*
At .050 the durations are unknown to me, but possibly a tad less than the Comp.
Now compare them.
Comp; intake 256, comp 126, power 115, exhaust 262, overlap of 39*
Mopar;Intake 256, comp 124, power 114, exhaust 265, overlap is 38*
The Comp wins at lift tho .447/.455 compared to about .410/.410
If you already have a good 360 2bbl cam........ IDK........... I wouldn't spend my money on the Comp XE256.
I have run that 360-2bbl cam in a 318, but without a compression boost, the bottom did get a lil softer. The 2800TC fixed that. That 2800 fixes a lottachit. I think you could get away with less TC, maybe a 2200 with 3.55s.I just went with the 2800 cuz I worked at a trans shop at the time,they had one on the shelf,and they cut me a huge deal on one, lol; so I took it home on Friday night, and drove to work on Monday morning with the biggest grin you ever saw. In traffic it was amazing. And it was 45 minutes each way to work, so I had a lota,lotta fun.
Wymrider has posted several times about his findings on Comp cams, as well as some other cams.