Having been around these strokers on the dyno, unless you have SERIOUS heads, and by that I mean 300cfm flow, plus, and a cam to match, reality says they are a 6000rpm engine. Unported Edelbrock heads with a cam in the 240-250 neighborhood is peaked in hp by about 5600 rpm, there just simply isn't enough real estate in the heads to support the cubic inches over these rpm's. I see little point in winding these engines up beyond 6000rpm on the street when they are already declining in power. A rule of thumb I've been told is shift points 300rpm higher than peak. I swear some people use rpm as a bragging concept, not a reality of best output of the package.
That said, I direct this a nobody on this forum or post, just comments on my perceptions.
