I'm lookin at the comp cams 252(206/206@.050, 110lsa, .426lift) and 260(212/212@.050,100lsa,.440lift) series high energy cams, and i cant decide which one. The 260 will obviously make slightly more power, but is there any noticable change in sound, mileage, or drivability?


Thanks

 

Get the 260, the numbers on that other one look to much like a stock cam to make any difference.
I wouldn't use that 252 even if some one gave it to me for free.
I got my cam from crane.
The 260 with 1.5 rockers is as big as you can go with out changing your valve springs. .440'' is as far as I would try pushing them.
I have a set of heads over here with me and I took them apart and measured the ability of the stock springs and the clearance of the retainer to valve guide.
You can only go to about .480 with out machining the valve guide given you have the right springs.