If I read correctly you were planning on porting test intakes toward the MR port since that is the Edel Head base. The MR Head as you know is a wider though not as tall port esp when compared to the Low Riser And CJ and was the evolution of FoMoCo's efforts. That said as you mentioned porting the Perf RPM should not be much effort because Ed designed that manifold as a match for their ED Heads.
However I note as you all ready know I'm sure that other to be tested intakes such as the PI are far from the MR port lacking width and exceeding it in height. Herein lies the potential metal in the road. The PI requires relatively deep porting into the ports to get away from the hour glass restriction of the port/head interface. I don't know about other intakes but some such as the F-427 and Sidewinder have cavernous ports that would barely require a fraction of an inch deep porting. The other end of this extreme is the Perf RPM with exceptionally uniform runners that vary little in HxW deep deep into the plenum itself- thankfully being of the MR design not much change should be needed.
I think the BT my friend had was also "blessed" with uniform HxW runners though of I think narrow w/o the MR based design.
On these long uniform thin runner manifolds I figure you may need to be prepared to reach in and port 3-4" upstream into the runners. It is a tough and time consuming porting job.
Though you've heard it already AWSOME job Jay. I find it most interesting that again the power curves are what can only be said to be moderate in RPMs and obviously in a free flowing situations that have to be considered as w/ Open Headers vs what is hanging under steet cars. I'd expect Street Exhausts would cripple the power band mostly at higher RPM.?????
The broad powerband of the Ported Street Master is amazing.
I'd really like to know what the effects of including "Mufflers & Tailpipes" would do to the dyno figures more then anything else sooner then later. Can you imagine the nightmare of finding a 30-40Hp loss and near equal several hunderd RPM loss if that happened from mufflers/pipes? Perhaps a way to synthesize back pressure can be made once the restrictions are determined. With so many running exhausts systems.
