Jeff... You didn't watch the video ? !
Here are the basic numbers:
Stock intake ( dotted line ..... )
torque 438.5 @ 3500 RPM
horsepower 389.9 @ 5400 RPM ( 387.7 @ 5300, 387.6 @ 5500, 385.6 @ 5600, 383.4 @ 5700 )
Performer RPM intake ( broken line _ _ _ _ _ )
torque 448.7 @ 4200 RPM
horsepower 424.8 @ 5700 RPM ( 422.9 @ 5500, 424.3 @ 5600, 424.5 @ 5800, 423.9 @ 5900, 423.0 @ 6000, 421.8 @ 6100 )
Speed-Port 6000 intake ( solid line _______ )
torque 466.6 @ 4200 RPM
horsepower 465.8 @ 5800 RPM ( 464.8 @ 5600, 465.4 @ 5700, 465.7 5900, 465.7 @ 6000, 464.9 @ 6100, 464.4 @ 6200, 464.0 @ 6300 )
My sinlge plane intake held an AVERAGE HP of 412.... 37 AVERAGE HP more than Edelbrock.
Torque was an AVERAGE of about 18 ft lb more.
The amazing thing was 76 horsepower more than a stock intake.
Holy $&#%, is the stock intake a piece of crap !
http://www.speed-port.ca/images/2964...81079af6b7.jpg