Install BBM w/headers

They stopped making gen 1-2 sbc years ago too, but u can still walk in and buy a lot of parts for them.
Come on man, they built 100 SBCs for every BBM, if not more. Either accept that the VERY old cars we love are not going to be easy to keep and maintain, or switch to generic motors and have race blocks and aftermarket heads flowing like milk and honey./s