Joe,
Are roller cams/lifters readily available for the various non-roller 307 Olds V8's?
Crane and Comp Cams.
If so, what's the downside?
None, except cost.
I'd been thinking of going roller anyway, if such was available, but this whole thing with the oil additives might make it a prudent choice anyway.
Zinc and Phosphorous additives are not needed for steel alloy billet cams and steel alloy roller lifters.
Milton Schick 1964 442 Cutlass[EMAIL PROTECTED]
