Is anyone using a 904 behind a GIII Hemi?

Absolutely agree. One other thing should be noted, one with the double wrap low/reverse band seems to be preferred, also. For what it's worth, I have a stone stock 1968 904 behind a 2004 std. bore, stock stroke 5.7 hemi. 6.1 cam, eagle heads (stock), cascar intake, and 09-10 5.7 jeep manifolds. Clearances were corrected, had a 4.2 lever in already, and shift kit installed. We will see if this works, doing the transplant this weekend.