idle problem with long duration cam

That .528 solid is EXCELLENT cam for street and strip. Much better idle and vacuum. Wonderful drivability and still sounds good with a lope. I changed to that cam from the 292/508 hyd, WOW, the difference was amazing. Vacuum went from 4" to 11". Overlap is 76 degrees (292/508), and 60 degrees (284/528). Throttle response was great and the car dropped into the 11's from the low 12's. I know it is a dinasour..but it is still a good one. You will like it. Good luck and let us know how you like it. The follow ups are very valuable to all the rest of us. So please advise and thanks. Terry.