Quote:

Quote:

340 out of 906s with no welding and no epoxy. Those are some strong numbers, about 40 better than anything I've heard of before. I would be intrested to see them tested side by side with a known factor.



I was thinking the same thing .



Aaah, so to answer. Side by side testing.

--best--best---recent--recent--past----box----box-----box
--stock-stock--ported--ported--ported--stock--stock---stock
--452---906----452-----906-----906----RPM---Victor---EZ

--61-----63-----92-------91------83-----73-----68------66----.100"
-130----137----170-----165-----158----148----141-----127----.200"
-188----187----224-----219-----206----209----204-----181----.300"
-213----216----265-----272-----250----254----246-----232----.400"
-227----224----287-----299-----289----276----277-----272----.500"
-230----232----297-----325-----326----287----305-----299----.600"
--------236----302-----335-----342----291----324-----315----.700"
------------------------339-----346------------334------------.800"


All flows from the same bench.

On 03/27/08 @ 11:13 AM, a set of the 906 heads on a 9.5:1 compression, all motor 451ci, made 554.2 Rear Wheel HP & 494.4 Rear Wheel TQ at Westech Performance Group in Mira Loma, CA

And on 7/23/11 The same 906 heads we ran on the 11.9:1 compression 500ci contest engine, made 693.5HP/548.3TQ, on a less than perfectly tuned, 9.7:1 compression 451ci engine.