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Ignition timing for 330 FT medium duty '65

62unibodymatt

62unibodymatt

32
1
Ft Lupton, CO
That tab mounted on the engine is your timing pointer. When you hook up a timing light properly and watch the harmonic balancer on the crankshaft, you'll see the timing marks and can determine how much advance should be set for your engine. You can adjust this by loosening your distributor holddown bolt, and carefully turning your distributor while the engine is running to adjust your timing. I've looked up timing on other websites and it seems that your 330 should be at 6 degrees (BTDC) Before Top Dead Center on cylinder number 1 at 550 RPM without the vacuum advance hooked up.
 

Alvin in AZ

1,330
46
Venta de la Mesilla
This sez 4*BTDC...
C700-4.jpg


Like everyone else said but, think of 6* BTDC as a minimum tho. :)
10* is not too much if it doesn't ping with your fuel and elevation.

It'll get hot sitting and idling if you set it at anything less than 4*.
BTDT with my 360FE set at 4*.

Alvin in AZ
 
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