AFR SBM Heads, Just got back from PRI

340six said
Do the Promaxx come ready to bolt on a SBM? Or just as,shown here ported. Price range?

As an owner of a set, yes, after you double check them just to be sure. Mine were good to go. Very nice work. There CNC program is conservative but good. Another 15, 15+ cfm of flow is possible.