Re: spark plugs for GT-40X heads
Hey,
Thanks for the response. What threw me was that the autolites had a shorter thread then the champions. But the electrode depth was the same. Oh well had to make sure.  My current best time is a 12.02 @ 112 60ft. 1.7. That was on M/T 10X26 slicks. 12.5 @ 109 on radials. My launch was roughly at 3500 rpm or so. I know I can hit an 11. That particular day there was a 12 mph head wind, not saying that I would have hit an 11 but I think I could have maybe knocked out that last .03 of a second without it. I'm still learning to launch on the slicks and could launch harder, but I don't get out to the strip as much as I would like to practice. Always fun though!!
There is some pictures of my car on www.haiokuracing.com during a imports vs domestics at our local track. click on past events at the bottom on sun May 14th. I'm the blue and silver GT.
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meknized
 Blue/silver 89 GT, Coast 331, ported GT-40x heads, X cam, cobra intake, 70mm TB, 75mm bullet, mac intake, 24lb inj, 255 lph fuel pump, accufab regulator, pulleys, MSD coil, 6AL, 300+ wires, Tremec 5 spd. pro 5.0 shifter, FMS drive shaft, headers, X-pipe, flowmasters, auburn pro series posi. moser 31s axles,3:73s, etc. Best ET 12.02@112.5
a pic  A vid of a run: http://www.youtube.com/watch?v=l9JMcErxML8
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