Well after a little research I'm leaning towards purchasing a ZZ4 350 c.i. with 355 h.p. from a chevy dealer. Seems like a good engine and considering the cost, around $ 3700.00, it is close to what my machine shop wants to do a rebuild on an engine I have. Thats without them replacing the pistons which they say are still good. The new crate comes complete minus the carb.