Who's 440 heads flow the best?

This may be a question for IQ, but any one can chime in.

I'm looking at getting heads for my 440 stroker build and want to know what numbers folks are getting at what lift and from who?

I'm asking about full worked heads, not stock flow.

Thanks for the time and advice.


I wanted a set of full out eddy heads for an RB stroker engine. I called every head porter I could find from the Midwest to the northeast. I posted a thread about it. All the CNC guys use the programing from Modern Cylinder Head. Out of all of the head guys I called, NO ONE achieves what Jim Laroy does with those heads. I even had a local guy flow them and he was blown away by the numbers.

I ended up getting my heads, intake and roller cam from him. His knowledge, work and customer service is impeccable.