Good morning, We no longer make camshafts for this engine but we could regrind a suitable core. The closest I can come to the specs youre looking for would be duration @ .050 of 248 deg with valve lift of .540. The lash is .026 so net lift is .514. We could change the LSA of the donor core as much as 2 degrees during the regrind process. The cost to regrind your cam is $126.00 plus shipping.