Better to use a longer control arm ( does not have to be that much larger) Check out Nir's build, Nirlybuilt.com. to get an idea of the size. You will need a fuel pump with the UMS 150. To clear the cowl, you may want to set the engine back a bit to get more clearance and use a prop shaft extension. Darrell can make one for you if you send him the length of extension you need