Putting a Solid cam in a Hydraulic Block??
I just changed my 340 to a solid cam and lifters
I have comp cams adjustable rockers, cam and lifters. Custom pushrods were made for the proper lenght
I have a set of 915 J heads that had hardened seats and 2.02 valves installed. If the aluminum heads would have been available and as affordable then as they are now it would be a no brainer to use the aluminum Edelbrock heads.
IF, I were building a new engine now instead of fixing the problem I had I would
use a roller cam
Aluminum heads
Build it right this time you will be money ahead
and go ahead and put a stroker crank in instead of getting the stock crank turned
good luck on your build