The RPM is not a low rpm intake. Edel quotes 1500-6500 rpm range. If you have yet to buy an intake, the Performer, 0-5500 rpm, would be better for low end & mileage.
Agree with others that the 340 cam is not ideal, but the 360 plus the long stroke will work in favour of 'softening' it. If you already have it, you need to weigh up the cost of a new/better cam versus the money saved on fuel.