Horsepower limit for out of the box Edelbrock RPM heads

thesiren74 said

Didn't they run a blueprint 408 on engine masters with stock eddelbrock heads and it wasn't that good? Then they ported the crap out of them and made a ton of power.

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The Engine Masters video series on/from Motor Trend on Demand did indeed have a 408 Stroker that is IMO handicapped by a “To small” of a head. Mentioning the video they did later on with the ported head is a great way to show how much the engine was crippled by the OOTB Edelbrock head.

Another way to look at it is it also show the head is saturated & IMO, at maximum. Perhaps a big bore short stroke engine would be different even at the same size engine