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September 12th, 2007, 03:17 PM
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#1 |
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Look Ma! My First Post!
Join Date: Sep 2007
Posts: 1
 iTrader: 0 reviews
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misfire at high rpm
hey guys looking for some help on this one.. asked around alot allready but to no luck. anyways ive got an 85 GT 5.0 bored out .030", performer rpm cam fully adjustable roller rockers, air gap intake, 4barrel 650cfm edelbrock carb, shorty headers, vortex exhaust.. on full trottle it pulls hard but once i get to 4800rpm- 5300rpm it misfires like crazy. if i stay on the throttle it will clear out and pull 6000rpm.. any thoughts would be greatly appreciated.
Thanks Mike Pasman |
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September 12th, 2007, 03:19 PM
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#2 |
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Enthusiast
Join Date: Nov 2006
Location: Ft Walton Bch, FL
Posts: 505
iTrader: 0 reviews
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Could that be where the secondaries are opening up?
__________________
Custom engine built from Super Six, Cam from Delk performance, Custom Novi 2000 in the works. My Car www.supersixmotorsports.com www.bc-automotive.com/ |
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September 12th, 2007, 03:23 PM
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#3 |
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MM Fanatic
Join Date: May 2007
Location: Bloomington, IL
Posts: 4,627
iTrader: 0 reviews
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Sounds like too much fuel. Check you secondary jets and maybe go down a few steps... better yet toss that edelbrock carb and get a real one.
__________________
88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it 
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