4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Spark plug choices

Old 11-07-2014, 12:01 PM
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VTX1800N1
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Default Spark plug choices

Looking for suggestions for plugs for a built engine:

Manley forged pistons, .020 over with 11cc dish.

Trick Flow Stage II cam for TFS heads (225/228, 550/550, 106/112, LSA 109).

For racing 90mm MAF and 39# injectors.

BBK long tubes and catted H pipe.

Stock intake plenum.

Anyone have plug suggestions? For the 44cc heads we might be able to go with 91 octane fuel with a tune. The 38cc heads will for sure require 93.

Either 38 or 44 cc Trick Flow heads. Using a compression calculator online, and having the block decked .006, I got 11.75:1 for the 38cc head and 10.67:1 for the 44cc head.

Plug suggestions

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