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Discussion Starter · #1 ·
ok so, i took the stang out today and was free reving it and noticed that the RPMs only go to 4K. while driving and winding out the gears it only goes to 4K aswell.

isn't the redline RPM 6K or am i crazy ?
 

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yeah, it should go to 6000
 

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Discussion Starter · #3 ·
whoa! well i must have a igniton issue then. in another thread (sparkplug wire acceptable resistance window) i will report my ohm testing results and what i find with the ignition components.

either that or my gauge cluster's tach is suspect! the speedo is inop, the coolant temp always show the temp is on the hot side, the oil pressure is always bouncing around. the fuel part is the only thing that seems to be working right.
 

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Discussion Starter · #4 ·
ok i reved the engine after my ignition check and mild service and it won't rev past 3500 RPMs. even in 1st gear it won't hit 6000 RPMs.

either the tach is lying or it's not reading vehicle speed or it's a VAC leak.
 
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