just wanting to know some opinions/ideas... I'm trying to get better gas mileage, and performance too I guess.. What can be upgraded to do so?
I have installed a throttle body spacer, k&n FIPK intake, and I'm going to install a MSD ignition, also have flowmaster dual exhaust... Any other ideas??
(98 GMC Sierra 1500 4.3L V6 2WD) thanks

 

We have a huge thread in the Silverado FAQ subsection that outlines a bunch of good power adders. You might wanna go check it out.

 

thanks