I kinda figured. If I understand boost somewhere around 7-8 PSI will give roughly a 50% increase in power. so 200 naturally aspirated plus 7-8 PSI of boost would get me close to the 300+ mark. On this type of engine if i had to chose between turbo, GMC blower or centrifugal what would the pros and cons be of each be in reference to heat build up and strain on supporting parts (IE the belt on the 471 running off the snout of the crank not forged pistons to handle the boost. Also any guess on a source for mile long connecting rods? I know this is no 350 Chevy so off the shelf would be out of the question but possibly a Chevy or Ford 6? Or a reasonable price custom set?