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Timing help with 350 and New MSD DIST.

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Old 05-20-2013, 05:45 AM
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Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
Timing help with 350 and New MSD DIST.

Hi, I am installing a New MSD Billet Dist Vac advanced Dist, I have a 350 Chevy with a Holley 650 Ultra DP Carb and the rest of the mods are in the sig below, Where should I start with my timing numbers?
What about total timing?

I was thinking around 8 Intial and 32-36 Total?
Old 05-20-2013, 11:57 AM
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Car: 87 IROC L98
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Re: Timing help with 350 and New MSD DIST.

Need to know the cam grind to give a ballpark ignition timing.
Old 05-20-2013, 08:01 PM
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Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
Re: Timing help with 350 and New MSD DIST.

Stock can at teh moment that came in the GoodWrench 350.
Old 05-20-2013, 08:39 PM
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Re: Timing help with 350 and New MSD DIST.

Originally Posted by BLACK Z
Stock can at teh moment that came in the GoodWrench 350.
Standard 250hp Goodwrench replacement cam
195/202 @ 0.050
Start at 10* but likely better at 14*

290hp GM crate motor
222/222 @ 0.050
16*-18* initial.

Limit vacuum advance to 12-16* total, use full manifold source.
Clean crisp idle.
Limit total mechanical to 36* total all in by 3000rpm.

Last edited by bygddy; 05-20-2013 at 08:42 PM.
Old 05-21-2013, 07:07 AM
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Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
Re: Timing help with 350 and New MSD DIST.

Where did you get those numbers from? I'll give it a shot. Thanks
Old 05-21-2013, 07:59 PM
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Re: Timing help with 350 and New MSD DIST.

Originally Posted by BLACK Z
Where did you get those numbers from? I'll give it a shot. Thanks
The cam specs? Or my suggestion for timing?
Cam specs, I have had both motors...wasn't sure about the smaller of the 2, its been awhile lol, the other 290hp motor I had last year in my 56 Olds so I remembered what it was.
Timing? Trial and error.....
Old 05-22-2013, 08:56 AM
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Re: Timing help with 350 and New MSD DIST.

Gotcha. I'll give it a shot, I figure 8 Deg would be the starting point, But I'll try ten Plus.
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