Horsepower limit for out of the box Edelbrock RPM heads

They flow better than a factory X head.
And IMO, they well work really nice with your set up. It will be a low rpm engine.

The heads will be a bottle neck as well as your intake but perform well. The problem is the heads are only 175cc? And this is a well prepped iron head, like a ported X head. In general, the Edelbrock head is very good for street and light strip for up to about 370 cubic inches. As cast.

This does not mean they suck after that but they start showing there short comings. Porting the head for strip use does help a lot. Depending on what your looking to achieve, the head can take you pretty far. Fully ported the end up at 300 cfm more or less by a few cfm. In laymen’s terms, that should be enough for 600hp and some more.

As a few pro builders have said, it’s hard to get enough head on top of a stroker and if your seriously racing the car, your looking into a set of Victor heads or W9 heads.

But back to your set up....
With .550 lift, I’d run a 1.6 rocker to increase the lift and take advantage of all the heads flow that is available. Going from a stock head to a well ported head would add about 70hp to it.

As cast, the flow numbers given by Edelbrock suggest this head will make over 500 hp. But no one really looks to make max up from a as cast aluminum head. It just doesn’t make sense because there are better heads that give better all around performance. Though I think it would be cool if someone did and come on here and say I made *** amount of power from a OOTB Edelbrock head, I just don’t see the point of it unless you just wanna do it for yourself. Believe me, I do like to experiment and tinker around like that but, as I said, they are better heads to make a lot of power.