When you say it "runs better" - do you mean at idle or throughout the
range?
It's not uncommon for a car to idle smoother with a little advance
beyond spec,
but then the advance is too far when the car's at speed. (hence,
pinging, in most
cases...) Even if your car is not pinging (as yours is not) more
advance can tend
to make your car run hotter and do nasty things like poke holes in
pistons or
crack them if you run into a batch of bad gas. Been there, got the holed
piston
on my desk....
Most high performance applications work best setting timing at full
advance to
where you want it at speed, then letting the idle timing fall where it
may. Obviously,
YMMV.
JZ
> -----Original Message-----
> From: Chuck Ciaffone [SMTP:chuckc@ibm.net]
> Sent: Wednesday, July 29, 1998 1:24 PM
> To: spridgets@Autox.Team.Net
> Subject: Timing the '72
>
> It happens every time I tune my '72. I set the timing,
> using a timing lite, to about 10 degrees advance with
> the vacuum advance disconnected and plugged. It runs OK.
> Then I start turning the dizzy for more advance, and it
> runs better. SoI would guess that I probably run normally
> with about 15 or so degrees of advance, AND it still
> never seems to ping. Can/should I just keep advancing
> the timing till it pings? What's probably going
> on here?
>
> chuck
> --
> =====================================================
>
> chuck ciaffone chuckc@ibm.net
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