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Old 02-13-2020, 05:22 PM
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Default Timing changes with rpm

Buddy saw this thread and a few others.

https://www.speed-talk.com/forum/vie...67082&start=15

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1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
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1964 Impala SS 409/470ci 600 HP stroker project
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Old 02-14-2020, 07:27 AM
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To me this is why to me any motor built with a Cam of 230 duration or more ( depending on cid ) needs a programmable timing box like a MSD 5 or such!

With these you can get the needed 50 degrees of timing at idle , low timing for cranking ove needs, and then above idle have the timing back down to what the motor needs then advance again until peak torque is made and then have the needed retarded timing creep in for maximum HP numbers.

As much as I don't like electronic's in cars since I repair electronics all day, this is one big plus for having a timing box like these in a car!!

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Old 02-14-2020, 10:13 AM
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Quote:
Originally Posted by steve25 View Post
To me this is why to me any motor built with a Cam of 230 duration or more ( depending on cid ) needs a programmable timing box like a MSD 5 or such!

!
I have a MSD 5 and didn't know it was programmable, can you tell me how or screen shot the instructions?
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Old 02-14-2020, 11:29 AM
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Sorry, early morning Brain misfire before Coffie!

It's the MSD 6AL-2 I was referring to!

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Old 02-14-2020, 11:55 AM
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Quote:
Originally Posted by steve25 View Post
Sorry, early morning Brain misfire before Coffie!

It's the MSD 6AL-2 I was referring to!
Gotchya....thanks for the clarification

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