Its the symmetrical port head. Everyone else is still using the asymmetric head.
Fwiw valve layout in diferent. Alan has I-E-I-E-I-E-I-E the others are E-I-I-E-E-I-I-E. Heads were debuted at SEMA a couple years back. First versions did not work so well and everyone went back the old asymmetric stuff which is why Elite had issues finding heads. No one wanted to release the older asymmetric stuff.
I thought I remember seeing those a few years ago but seemed like know body ran them for some reason. I'm wondering if the valve and port layout was not favorable with lining up to the carb venturies whereas the FI stuff with dedicated injectors is not sensitive to that.
AG.
