Spark Plugs

I am looking for a recommendation in respect of suitable spark plugs for my Tornado TS40 which is primarily used on the road. I am UK based.

Engine specifications are:-

Ford 302 Holley 600 cfm 4 barrel Big Valve Ford Motorsport Cylinder Heads (Aluminium) Motorsport True Roller Rockers Edelbrock Performer RPM Camshaft and Inlet Manifold MSD 6AL with Blaster 3 Coil ignition Accel distributor 51201E Blue Max 8mm Spiral Core Leads.

Also what would be the recommended plug gap setting.

Many thanks for your assistance.

John
 

Howard Jones

Supporter
Here is a good overview of the how and why of spark plugs along with a cross-reference of different plug manufacturers. I am using NGK R #BKR6E. Engine : SBC, aluminum heads, 10.68/1 CR, quite a lot of cam, and 93octaine pump gas.

The MSD 6AL and Blaster SS 8207 coil seems to like a plug gap of .040

 
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