well, for all base FE jet drives, they require a 700 series. I like the 700sc in this boat, but my new boat is getting a feigao 12L. A 540 is too small and an 800 is unnecessary. You want the right RPM with the least amount of weight. bad memory here, think 20,000. The 700sc doesit, but the feigo will do it lighter, due to decrease in cell count. 12-16(700sc) 6-12(feigoa).