So here's the problem:
It's a '74 Super Beetle (carb, not FI) but it has a '71 Cal. 1600 DP in it (or at least so says the book that lists the engine year/serial numbers). So, do I tune it to the '74 numbers or the '71 numbers? And after replacing the tailpipes, should they stick out of the muffler the length listed in Bentley's for a '71 or a '74? There is a big difference in this length, and the book says it's important to get it right!
BTW, what is the difference between the Federal and the California models for 74? It seems to have a standard muffler (no EGR connection), nor any special smog devices. It has a single heat riser tube, not the double.
-Autostick, too.
Thanks for any help in advance,
Rich