280zex Posted April 7, 2013 Share Posted April 7, 2013 my setup- F54 block, .5mm over bore, 10cc dished pistons, n42 head mild port n polish, 4.80 lift cam @ 280 degrees, with the cam on hole 2. T3/To4E 60 trim turbo blown thru a Holley 4bbl carb, 20lbs max boost methanol spray, no intercooler, running 92 octane pump gas. timing is 20 degree locked, NGK BP6ES plugs gaped at .28 coolant temp at 205 degrees F, and oil temp at 185 degrees F My O2 sensor reads 12.5afr at idle, and cruze = 60mph @ 6200rpm. I think the plugs look great for my tune, any thoughts?? the first pic is plugs 1, 2, 3, and the second pic is plugs 4, 5, 6 from right to left, or as reading 1 thru 6 from front to rear Quote Link to comment Share on other sites More sharing options...
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