loud motor = happy motor?

[Tom Sharpe]

Greg Hermann wrote:

>  You simply cannot achieve any sort of vacuum to run the advance,
> >so in reality, you are revving the motor with retarded timing. Ignition timing
> >is a factor dictated by today's gasoline. You simply cannot run the amount of
> >ignition advance today that you used to 10 to 20 years ago. The "more is
> >better" rule also does not apply.
>
> More knowlege as to how to design chamber shape and turbulence has at least
> as much, and likely a whole lot more to do with this than fuel!! I have
> built engines which would run with no ping at 12 to 14 degrees MORE advance
> that what made best power! (Lotsa squish, very short flame travel, central
> plug.)
>
> You can easily go too far, and lose
> >performance
>
> See above statement.
>
> Regards, Greg

10-4.... Squish usually always helps. With a SBC, run steel rods, .04x gaskets and
.000 deck. (you always have to cut the block)  Then look at the piston tops and
combustion chambers when you tear it down.  Amazing...  Regatds  Tom