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Discussion Starter · #1 ·
i have a 2003 gt 2 valve. it's got comp. xe278ah cams. (.545lift, 277, 281 duration) mild ported heads, comp beehive valve springs, ported
typhoon lower intake, and upper plenum with 75mm throttle body.
bbk long tube headers, x-pipe, flomaster mufflers. it made 303hp at the rear wheels.
i made 6 pulls on the dyno with no problems, and about 30 miles of driving. recently i got a loud top end knock when running it hard, but it goes away after a few minutes. i changed the valve adjuster with oe fords, but i'm still getting the same problem.
any help is greatly appriciated.
kyle.
 

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Discussion Starter · #5 ·
ok i checked oil presure, no problems there, even when it starts to knock it doesnt drop at all.
it also started to backfire threw the intake if crack the throttle fast, but not all the time?
kyle.
 
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