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post #1 of (permalink) Old 03-15-2000, 12:31 AM
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Timing

I'm replacing my EEC-III system with a MSD 6A, single point distributor, 1406 edelbrock carb, #3781 edelbrock preformer intake and MSD 8207 coil, dual exhaust and a RV cam on a 351W. I live at 6500 feet above sea level. What should the timing be? please tell me if you need more info. I

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post #2 of (permalink) Old 03-15-2000, 09:32 AM
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Re: Timing

Dude, I don't know what timing you should be at. But I am replacing my EEC ignition. What kind of engine are dealing with? I have thought of the RV cam. You may be just who I am looking for.

thanks

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post #3 of (permalink) Old 03-15-2000, 09:47 AM
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Re: Timing

As a good starting point. Set it to about 6 BTDC and then get the carb adjusted for idle speed and fuel mixture. It is crucial that the carb be properly adjusted before you change the timing. Carb settings are going to be more effected by altitude than the timing. What will effect the timing, is all the new parts on the engine. Once the carb is dialed in, you can now bump the timing up to just before it pings and back it off a couple of degrees. Good luck.

Eric R. Tachell

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post #4 of (permalink) Old 03-15-2000, 03:05 PM
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Re: Timing

With a RV cam (mild lift and duration) your final advance will probably be in the area of 12 - 15 degrees BTDC. This will be a comprimise between performance, fuel type, and starting. The farther you advance the timing the harder to start and the higher octane fuel that you will need to run to keep from getting detonation. You will just have to experiment with it. Remember that a little less performance is worth a lot of miles of engine life.

I ran a similar wet up on a 69 351W. I ran a much more aggressive cam with Rhodes lifters and roller rockers. My final advance was about 20 BTDC. Stat near factory and work your way up slowly. Wait until you have a feel for things and the engine has some time on it. Then move it up a few degress and see how it feels. The MSD is great! It will make up for a lot of short comings in you carb tuning, so watch out not to get your mixture too rich. The MSD will ignite it, but you may waste a lot of gas. Good luck!
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