I would recommend that when you do replace your intake that you have your heads ported and polished or buy new heads. If you do both at the same time you will see a bigger gain in HP.
As for what to do first I would do gears and exhaust first.
DRIVE IT LIKE YOU STOLE IT
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Steve Stumbaugh
89 LX 5.0 5sp, Removed air silencer
Mac High Flow Air Filter
Motorcraft 8mm wires
Autolite platinum plugs
Mac O/R h-pipe
Flowmaster American Thunder
3:55 gears
Accel Super Coil (42,000)
75 mm Mass Air Meter
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