Horsepower limit for out of the box Edelbrock RPM heads

Well, I truly believe that they didn’t need to alter the valve angle or send into production there so called W5 misdrilled pattern. Edelbrock didn’t need to do this for the Victor head. The could have easily kept the stock valve angle and properly drilled the exhaust holes and still have an excellent head.

The use of Big Block rocker arms aren’t a big deal. The use of Offset rockers are kind of the gimmie for a serious port so it is expected IMO. MoPar has done it since....
1976 when the W2 came out.


Valve angle change produces more cfm more horsepower by getting the 2.15 valve away from the cylinder wall. We can’t always stay with 50 year old technology if we want to close the gap on Chevy and Ford. I’m all for it and if I wasn’t knee deep in my 360-1 headed 422 would already have a set. One more freshen on this stuff unless the market turns around for me and I can start with a Ritter block and keep the other build on a stand for a spare.