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Re: Questions about using a timing light
when i did upgrades on my 350 (HEI, carb, intake, etc)
I just put a vacuum guage off the carb and advnanced timing until I got peak vacuum.
You can also just do it by ear. adjust dizzy until engine sounds smooth and highest rpm.
then tighten dizzy nut but leave it just loose enough that you can still move the dist with some pressure. then tweak from there as driving.
for me 13 BTDC was best.
honestly you don't even need the timing gun unless you are curious what it's at.
RRM
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