MSD 6 vs. MSD 7

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roccodart440

roccodart440

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I currently run an MSD Digital 6 and have for 20 years. There is nothing wrong with it, but my father is building a new car and he needs an ignition. He'll pay me half the retail cost of mine and it would allow me to upgrade to a 7 series for a very low cost.

Wondering for those of you who have run both series, or have run a 7 series if you think it is a worthwhile upgrade.

I'm not at all interested in opinions on MSD products. So if you're an MSD hater or think a chrome box is better, move on by Tex.
 
Last edited:
roccodart440 said:
I currently run an MSD Digital 6 and have for 20 years. There is nothing wrong with it, but my father is building a new car and he needs an ignition. He'll pay me half the retail cost of mine and it would allow me to upgrade to a 7 series for a very low cost.

Wondering for those of you who have run both series, or have run a 7 series if you think it is a worthwhile upgrade.

I'm not at all interested in opinions on MSD products. So if you're an MSD hater or think a chrome box is better, move on by Tex.
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Yes, you need to upgrade. You can’t have too much ignition. Once you go to a 7 you will never use a 6 again.
 
I have run a msd 6al and msd 7al-3 in the same car....no difference in performance.....in fact I went back to the 6al in our 71 Duster
 
I ran the 6al for years when I raised the compression developed a miss went to 7al problem fixed. Needed a stronger spark for more pressure. Changed compression from 12.5 to1 to 14
 
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