Plug Gap

[trbojo]

Built long block, low 10 capable. 28-30 psi, pump gas and alky. Basically stock ignition with msd dis 4. Using autolite 103 plugs. Who's running what gap and recommendation...

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[ScottHeidinger]

.

 

[turbobitt]

.022"-.025". Wouldn't run any more regardless of ignition type. If its stock coil pack and module, keep it towards the low side of .022" to maybe even .020".
AG.

 

[turbo nasty]

First off the MSD DIS 4 boxes are junk and will go out, tons of failures on them!

 

[ScottyG]

Honestly if ur running that much boost I would opt for race gas or e85. I don't like playing with fire.
But anyways
I run ur5 at gapped at .020 but we run 30-35lbs with the MSD 8.5mm wires never misses a beat

 

[Mr.Spool]

Built long block, low 10 capable. 28-30 psi, pump gas and alky. Basically stock ignition with msd dis 4. Using autolite 103 plugs. Who's running what gap and recommendation...

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low 20s like others suggested.the 103 plug works good

 

[michael evans]

Keeping it safe at 23 pounds of boost, I am at .028 so far I logs look fine.

543 HP 704 FT pds

XFI with factory ignition.