I was thinking about adding pulleys and fans to my 98 4.3 sonoma within the next few months. would it be better getting the pulleys then fans and then a power programmer or a power programmer before the pulleys and fans.
I'd do the pulleys, fans, and the EGR mod. The EGR mod is around 20-35 bucks. You're gonna reduce a nice amount of engine rotating mass by doing Efans and pulleys. Plus you can throw the EGR mod in cuz its cheap. I'd hold up on the programmer until one of ur last mods.