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HybridZ

New Z owner with question on timing.


Guest Joshua

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Guest Joshua

Hello.

I picked up a 73 240 a couple of months ago, and have been making minor repairs and modifications as my budget has allowed. One of the modifications that was done by a previous owner is an MSD ignition with a Mallory dual point distributor. I noticed this distributor doesn't have a vacuum advance, so I decided to check and adjust the timing.

 

The static timing was set at 30 BTDC, and mechanical was another 20 or so @ 3000 rpm. In addition, the distributor was loose enough to move by hand.

 

I'm not sure what the timing should be, but I adjusted the point gap, set initial to 18 BTDC and adjusted mechanical to 13 at 3000 rpm for a total of 31 degrees advance.

 

My Z has an MSA stage one cam, 6 into 1 header, free flow exhaust, and no emissions gear.

 

Is this timing advance acceptable? Can anyone recommend a better setting? Is my timing needlesly retarded? Any advice would be appreciated.

 

Thanks,

Josh

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