I got this from mustang spec website. For my stock 289 car and distributor, it says maximum mechanical limit is 14 degrees and maximum vacuum advance is 12.5 degrees. website also says base timing should be 6 degrees BTDC. I’m little confused. 6 plus 14 is 20. So when you are WOT where there is no vacuum, its no where near 32 to 36 Where most people suggest total timing is set. Currently i have 20 degrees advance when canister is connected to manifold port because my base timing is set at 12 and it timing mark reads 32. Is canister adjustable with allen wrench? How do you all set your timing? This is my first Ford and I am customed to tuning Chevy but I thought both are pretty much same when it’s carbureted with distributor.
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