PCM Pro Tec Ford 351 initial timing

[dpkumph]

Hello, I recently bought a 1992 Supra Impulse with Ford PCM pro-tec. The boat has low hours and in good shape but the carb needed a rebuild, which I had done and tested. I want to check / set initial timing after reinstalling the carb but not sure how to do it. The PCM manual says the only adjustment needed on these is setting initial timing, so I presume it can be done. Is there a small clamp on or under the interrupter / "puck" that can be loosened to rotate it like a distributor? Any help is very much appreciated. I searched for this topic and didn't find it. thanks for any info! Doug from NH

[Jonny Quest]

Static timing is 10 degrees BTDC, 18 degrees BTDC at 700 rpm. You have to disconnect the knock sensor prior to checking / setting timing.

JQ

[dpkumph]

Thank you very much for the help!

[alicent]

To set the initial timing on your PCM Pro Tec Ford 351, locate the interrupter or puck and slightly loosen its clamp to allow adjustment. Use a timing light to align the harmonic balancer marks with the recommended timing, usually around 10° BTDC at idle, then rotate the puck gently until correct timing is achieved.

[Rednucleus]

Hmmmm, the above post looks very AI-like to me - and don't think it's correct vs what Jonny Quest describes