I'd also add the Dodge P7 head to Al's list. Both Slawko and CFE do unlimited N/A ports for them now
Alan,
I have yet to see a P7 head in NHRA competition which ha surprised me.
I think but I don't know for sure, there is a Weber block that accepts them also.
Bill
A friend started building a A/EA engine years ago, but stopped because he didn't feel there would be any interest in them. The SB2.2 was starting to become popular in that class back then, the P7 is very similar, but the Mopar guys weren't interested back then it seems. Fear of the unknown I guess. Even now, most people running the R5 P7 platform are buying complete engines because they are relatively cheap.
The Ritter XR2 blocks were designed, as Kent and partners had a vast supply of ex Nascar parts. The XR1 (that is available now) was made from that casting. They are a tall deck (9.6 & 9.2"), not really something suited to Comp Eliminator. The R5 is 9"
