Re: spark plugs for GT-40X heads
I think the champions and motorcraft are that way, i run the 764's on my iron's, and I think i noticed shorter thread on the autolite then the motorcrafts, I dont have any experience with the 40x heads, but I would't worry, either plug should work fine.
Hey meknized, your combo sounds badazz for a street car, is your e.t. on street tires, or stickies?
sounds like a similar combo im looking to build someday, you ought to get high 11's 110+ out of that though.
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X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's.
race weight 3,160
12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear
13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear
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