I have had other F-150's in the past but plan on buying a 96 Ext Cab with a 302 and an automatic. The engine is blown and out of the truck. I want to put a 351w in it instead. I know I will need the lower intake, flex plate and ballancer but will I need a new computer to run the windsor. Also is the 96 a mass air vehicle, speed density of batch fire? I really dont want to put the 302 back in because I plan on towing quite a bit and the 302 trucks I have had in the past didnt pull up hills all that well. Thanks in advance..