I am looking to get a new engine for my K-20 Subruban. It has a 350 with 150K tired miles. I have been thinking about a crate motor HT383 from Chevy. That or a big block, but I worry about the smog laws in Maricopa County, and what the swap would do to my emissions. Before I do the deed, does anyone know a good wrench in Arizona that could build me a high torque 383 for under $4,000?? And does anyone think I'm being a wimp about the big block (other than the cash difference I guess)???