What? 'Nother 360 magnum on the dyno?
It is 400 HP I bet. Just twist it a little more. lol
Here ya go Rob, my favorite run from today. After removing the Summit Racing $129.97 headers, we put on the Pace Setter Performance long tube headers part number 70-2213 that he is going to use on his truck.
Lost a little torque on the bottom going from 1-5/8 to 1-3/4 tubes.
Put on an Edelbrock Performer 1407 carb and started leaning 'er down. WOW did we have to lean it down!
RPM................TQ/HP
2600..............365/181
3000..............383/218
3200..............402/245
3500..............409/272
4000..............415/316
4500..............419/359
5000..............408/389
5100..............407/396
5200..............400/396
5300..............395/398
GO BABY.......GO!
5400..............392/
402
5500..............386/
405
5600..............370/
405
We had one run at 413 horsepower and never could back it up, but half-a-dozen runs today went over 400 HP.
