need help $$$for help

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Aug 8, 2007 | 05:08 PM

indigo28

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From: Lewisville, Tx

need help $$$for help

i have my 1999 z28, it has a rebuilt performace tranny (auto),pacesetter longtubes, ory ,slp loudmouth exhaust, no cats, airlid, bellow, and it ran 8.40s stock, and now its running 8.90s... it gradually got slower and slower since the stock times....

its never been tuned so i know i need one, but can the tune cause a car to run so slow???and yes i do know how to launch it off the tree, 60ft and all.if someone can come by and show me whats wrong with it, id be more than willing to pay for your services! please..an lt1 is faster than my car!

Aug 8, 2007 | 05:24 PM

daniel6718

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From: garland tx

post up your timeslip...and yes your tune is hurting some...does it hit the revlimitor between shifts or delay?

Aug 8, 2007 | 05:56 PM

indigo28

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From: Lewisville, Tx

no rev limiter banging or anything like that. ses light is just for no cats, no rear 02s, and thats it...

Aug 8, 2007 | 06:11 PM

TamedZ

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From: McKinney, TX

tune = fixed

Aug 8, 2007 | 07:13 PM

Candyredz28

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From: Irving tx

take it to mark shaner in arlington, he tunes these cars very bad azz, and while out there pick up one of his ported throttle body's, it will make a difference, his # is 817-860-8830