Noted, but one small detail about this thread, the OP is interested in turbo's, and this is his early A, not your early A. Also the comment about Toyota not being fast for the next 50 years? I literally can't even.
??? He asked for opinions. I'd put my money in the best drivetrain ever made. MOPAR. Of course he can do what he wants with his car and his money. For me, I'd rather build a 170 cu in Slant six.