need some help with a custom cam specs

[red gt500]

i have came a cross a set of custom cams that had less then 500 miles on them almost new but i dont know if the specs match my set up i have a 2.8 kb and a built 5.8 engine stock cams for now
the cam specs :
adv dur: 294 int/ 294 exh
[email protected] 252/ 252
lobe: 113
valve lift: 0.585

should i buy it ?

 

[Catmonkey]

Those duration specs are pretty extreme. I'm not sure what you would need to do to the heads to accomodate that much lift either.

 

[red gt500]

The l&m cams i think has a lift of 0.570
But i dont know if going to 0.585 is a good idea

 

[jazz]

I just got jdm cams, i have a 2.8 kb as well

 

[red gt500]

Any numbers are written on the jdm cams just to compare mine to them ?