I like my .21vzb, I went with a bump box and ditched the ez start. I scored the motor off ebay and was local to me. I sold the 3.3 engine and starter wand for what I paid for the BB motor, so the only out of pocket expenses I had was the bump box, the (2) batteries for the box, and then the big block conversion kit, and (1) os-p7 glow plug. If i'm not mistaken, I think the big block conversion kit comes with the manifold.