[Ironangel]

Stock springs will work with the 60101 Voodoo Cam...Heres a deal on ebay. http://www.ebay.com/itm/like/301658493935 Either cam is ground for stock height spring perimeters. I did have one failure after about 200 miles, one stud on the #6 cylinder broke off going down the interstate with no load at cruise speed of 70mph. That was the cause of a weakened stud because they were drilled and I think a faulty lifter may played a part as well. I've put 8000 miles on the motor with the 60101 cam and just got back from a 3000 mile trip through the mountains and she's still pulling hard...New springs are always a good idea, staying within the stock perimeters is insurance that the engineering is good and still a little room for error. Comp Cam started offering break-in springs because so many cams were getting wiped right out of the gate. If your not going to be spinning up drag race rpm, you dont need stout springs, especially on these old soft heads.