Point by point. Cost is a major consideration for most members here,I believe. Rules however not so much. And I would like to think all our members have at least reasonable mechanical skills and enjoy tinkering with our cars. Especially the engine. That is what these forums are all about. By the way,that sohc 427,its a hemi also. At least thats what I remember. But Chrysler put hemis into cars anyone could buy. Fords hemi was over the counter race motor.