SO on the long and boring drive to Little Rock I've decided to do an engine build and hold off the turbo system. I'm going to ask around town to see if anyone can do the 4.5 conversion on the 370. If so then check to see if it will be cheaper to have someone local do it compared to what GTM charges. I know they charge $16k+ and that doesn't include you shipping them your block. So probably around $18k+ to have GTM do the build.