My 74 GTV 2000 w/Spica is a bit unresponsive and the gearbox is cranky - due to the old synchros I'm guessing. Rather than a rebuild of both, I was considering getting a whole new drivetrain that is a bit more "racy". A carbureted 1750 with a gearbox with a lightened first gear and a higher gear for freeway speeds. I can keep the original drivetrain aside in its original condition. Any ideas on pros or cons? Let's face it, either way, it will cost the same. It is either that or sell it and start over.