Hey Stephon! I remember your screen name. It has been awhile. Welcome back.
I’d like some specs for the Clay Smith cam @.050. It is a low lift @ .525.
Here is what I would do. Food for thought for you.
Mill the cylinder head slightly for a 1/2 - 1 point in compression.
Sell/Trade the rockers for a 1.6 ratio
Use the MP Purple 296/.557
New lift is .594 without lash adjustment. MP calls for a .028/.032. You could run tighter. But it will at least get that valve up into the heads higher flowing area.
Talk with Mike (Member B3) about valve train geometry)
I’d run the RPM. With a 1 inch open spaced if room allows. You’ll give up nothing to very very little on the top end but gain huge on the low and mid range.
The 296/.557 is the largest cam I would use a dual plane on. Not a single plane. Not on a full weight or semi lightened car. Your ‘67 is not a light weight. (I have a ‘67 small block) The next size up Purple cam (at a min. size cam) I’d use a single plane with in a lightened car.
