235cc Competition Heads. The highest flowing 23° casting with standard port locations! Features Fully CNC machined chambers and ports, 3/4" deck thickness and lightweight 8MM intake and exhaust valves. Perfect for 350-434 cubic inch engines normally aspirated, nitrous equipped or for blower applications. Feb 14, 2007 · guys i have the afr 190 on my 396.i can fnd the camspecs and i will post.on the engine dyno imade 521hp and 500lb/ft of torque.the heads came out of the box never touched.i know it a 396 not a 350 but without touching them i think those are not bad numbers.