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Old 08-05-2009, 11:02 PM
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66Ponty 66Ponty is offline
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I actually just put some NGK Iridium plugs in...I emailed NGK, told them my specs and they sent me the recommended plugs. It was the XR4IX, which was cooler then the ones that I was using. The NGK people told me that as a rule of thumb(with them) for every 100 additional(from stock) HP you can go one step cooler.

Moving to the cooler plugs did help a noticeable amount.

Would jetting help with the pinging? I actually thought that it might be pumping too much fuel, as was the reason for getting the regulator. That was speculation though. I do get a strong odor of gas sometimes when I open the hood after running the engine and shutting it down. A bit more then I used to with my old engine.

I still need to pic up my cam spec sheet
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