Originally Posted by tclederman
If you do not have one, buy a vacuum tester .

Use it to adjust ignition timing and fuel mixture. Connect the vacuum gauge/meter/tester to the vacuum-wiper port on the intake manifold. Another explanation for using a vacuum gauge for tuning.


thanks! to answer your previous question, yes i have the shop manual, the factory assembly manual and the two smaller books on rebuilding the trans and differential. i was all about the literature when i first got the truck

Last edited by gmtjr; 08/21/2013 9:50 PM.