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dpegan dpegan is online now
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Join Date: Feb 2003
Location: SF Bay Area, CA
Posts: 1,267
Need spark plug recommendation

I am finishing a new engine build and need your recommendation for what spec spark plugs to run in the engine. Some information on build:

3 liter
Stock heads and valve size
Aascomotorsports valve springs and retainers
Compression ratio 10.5 : 1
Cams Elgin 306/288–102
Twin plug
S spec MFI

Thanks in advance for your responses

Cheers,
Dan
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DJP; 74 911 3.6 Vram in progress
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Old 10-30-2021, 10:36 AM
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