This probably answers the question in the National Buick too. I know that turbo v-6 was a screamer too? As a matterof fact, somewhere buried in the grey matter , I do have some knowledge of the Offenhauser engines? They were super tough, the detail on engine head to crankcase escapes me now? I did love my old 3.0 300td Mercedes diesel..120 hp with turbo, slow take off to 40, then pow the body raises and it clicked to stop on the speedo at 85pin put there by gvment. Let it off and settle down, no telling how fast it runs? But I know foreign smokers are not popular here so???