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Hard shifting out of 1st gear

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2K views 1 reply 2 participants last post by  lt1-xjs 
#1 ·
Today I pulled the intake manifold and other said parts in the way to replace my intake manifold gasket, after putting everything back together I took it out for a test run and now the car waits until 2500-3000rpms to shift with casual driveing. If I punch it at around 2000rpms the car will shift smoothly. What could be the source of this issue, was something put back wrong or has a new problem come up, please help with whatever information you can, thankyou. -93 Firebird Trans Am LT1
 
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