Bull puckies! lol
I run OOTB RPMs with valve jobs corrected and gasket matched on my strokers and they make 450-490hp depending on the combo. That's about 240-245 on a street cammed engine (.497 @ the retainer) by the numbers. And that's more than one set of them over years. So I can't agree with that.
That being said - The comparison is not apples to apples. The RHS are ready to bolt on for $1350+S7H from Brian. They are purchased as bare castings so if you buy them, your shop may get more for the work or get worse results. RPMs come assembled but IMO are not in any condition to be run OOTB. They need the valve job fixed, special head bolts, the special Fel Pro head gaskets, and possibly upgraded springs which brings the cost to get them on the engine and running up to around $2K plus springs. RPMs are lighter and have more potential than the RHS heads. But that costs.
In this particular instance, I think Brain's heads are the better choice. Again assuming the engine is healthy and the issues it has are tuning/setup. I still don't believe it is but that's of no consequence.
