Emmettology 101 said:Advance's Vortecs are 340hp and the prices are:
$6474
$6774 w/factory style comp
Link: ADVANCE ADAPTERS VORTEC ENGINES

, the best mileage it has ever gotten was 11.5 and has pulled all the way down to 5 towing an enclosed 30' trailer with 4snowmobiles and all our gear into a strong headwind.