It is good to help with info I agree 100%..Casey's point was you need to test a part before claiming a .15 ET gain. That is substantial. They cost $175, most racers want to see test numbers before laying out the $$$.

Chatted with Kenny and Russ at Norwalk about the inserts and looked them over.Chaz and I see where they can make the low and mid range a little more responsive(possiably)but still feel we would rather weld or epoxy the two opposing angle corners to eliminate any chance of puddling and not decrease the volume of the intake as drastic as the inserts do and work with jetting and carb modifications to achieve maximum performance.On a smaller cubic inch engine we think there (may) be some benifit,but on a large cubic engine we like the extra volume.