>>the years, but I still think it's fundamentally true, just not over say...
>4200 rpm.  It's the valve train that's really the most awesome, driving the

I remember an really expensive rotor for my '71 that was a centrifugal rev 
limiter also, fixed at 4200RPM i think, that or 4400. Cheap insurance, but I 
still bought the $3.00 model at tune-up time. I also remember hours on end 
at full throttle, 58-63mph no problems. Old VW manuals used to say "top 
speed and cruising speed is.." then they started saying "top speed..", then 
no rating except speed /1000 RPM. I guess they didn't want to encourage 
breaking the speed limit once they could do so.   tim s.