Spark Plug Gap w MSD

[JoseyWales]

Hi all,

I'm installing a 5.0L HO motor with a Q-Jet carb, MSD ready-to-run distributor, blaster high-vibration coil, and MSD 6 off-road ignition control. Has anybody experimented with spark plug gaps with similar setups? What gap works well?

 

[mr incredible]

mine is at 35 /thou ... ,, seems good ,,,,

 

[rcmbronc]

Typically with an MSD you can open up the gap. I would try .045"

 

[bronko69er]

I run .045" with a blaster 2 and 6A.
No problems.

 

[natureboy300]

I called msd when I installed mine and they told me .042"

NB

 

[astark]

I'm at .040 right now and have run .045 before, didn't notice any difference between the two.

I did notice a difference after upgrading my motor to body and frame grounds though, so make sure those are good