Food for throught is that on a 106 hill climb car the raceland produced more torque/power all over the rev range over a gmc. Although that was on a higher spec engine, where the OE manifold might be very very restrictive.
And that this was the main reason everyone started going raceland. The different primary design to the OE one will of course change the characterisitcs of the engine slightly as it will be changing the pulsing quite a considerable amount aswell as the airflow characterisitcs.
__________________
God made beer, women and Throttle bodies 
|