Hughes Edelbrock heads : Smallblock

There is more to horsepower than head flow. We should all know this by now.

You can have two heads that both flow 300 CFM and they can very different max HP levels and HP curves. There is more to it than flow.

If you are buying a head base solely on flow, you are bound to get screwed.



BTW, if everyone would use correction software, and checked their benches for leaks, they would all flow within 1%.

A tricky dud I know likes to use very soft checker springs on the valves. That way, when he is flowing, it will open the other valve a bit, and shine up his **** numbers a bit.

A loose spark plug will do it too. Some guys leave the plug out!