help ac and timeing
help ac and timeing
ok guys ac vent problem still no anwser it an 88 5.7 tpi v8 all stock wheres the vacum lines to open and close the vents also whats the best timming for my stock motor gas and power wise thanks
Junior Member
Joined: Jun 2005
Posts: 66
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From: Stationed in Germany; originally from NY
Car: 1991 GTA Trans Am
Engine: 355 TPI
Transmission: 700R-4
Don't know if this will help at all, but here is a vacuum diagram for 85-89 TPI engines. It only has only line at the back that says "To HVAC" Your looking for more specific ac lines...

As for the timing, stock is 6* for this engine. That should be the best for what you want.

As for the timing, stock is 6* for this engine. That should be the best for what you want.
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