that manifold was built really by et performance when john worked there wasnt it? i remember talking to pete about it and how much work it was,, a buddy of mine worked at et and told me they had well over 60 hours in it,, had 40 hours in machining the runners,, you might not beable to see it from the pics but each "pair" of runners is made out of billet,, ie, runners 1,1nd 3 are one piece transitioning and ovalish port opening into a round opening in the plenum. very nice work to say the least,, i doubt john would do that today since he has no cnc machine though cary could machine them up but id have to say that would be a 5k manifold,, im sure john would just use a folded runner like all his other stuff.

nice job on the power pete,, generally you are limited to about 2.4hp per cfm of airflow with a motor like yours,, to make 1200 hp you would need 500cfm,, so you maxed out those heads im sure. 1200hp in that car 2300-2400lbs?? shouldnt that be a 7.20 or so? good job