Obviously, this intake is not designed for stock motors, but we always do our initial testing on cars that are as stock as possible to ensure that fitment will be correct.

Now before I continue, I would like to make sure that everyone reading this understands the difference between PEAK dyno #'s and OFF-PEAK.
If you don't know the difference, please ask so I can explain it. It's important to know the difference when looking at dyno #'s to get a full understanding of what the "real" gains are, which are usually in the OFF PEAK portion of the charts.

OFF-PEAK PERFORMANCE-
With the BBK intake, the engine did not struggle until 5,500 where I stopped the runs. From 3,500 RPM the BBK kept pulling as the stock unit dropped off. @ 5,000 RPM (which is the highest RPM I can compare the proto to the stock unit) there was a gain of 52 Ft-lbs, and 50 H.P.

PEAK PERFORMANCE.
I found that the PEAK H.P. was 9 H.P. greater while the peak TQ was down 16ft-lbs which is very typical for a short runner intake on a stock motor.

On the very bottom end (1,500-2,500) I would expect that a STOCK engine could take a 15 -20 H.P./ 20 Ft-lb hit with this type of intake, where a built motor would be able to take advantage of the short(ish) runner design and make more power and torque than stock down in the low end.

Clearly, a heads/cam, blower, or stroker motor would eliminate the low end loss and make even more mid range and top end gains than what is posted here, but again, this is the initial testing.

Bryan