1998 chevy k1500 with 4.3 performance ideas???

the only thing i have done to my truck performance wise is a K&N intake. Does any one have any ideas on performance upgrades? Also, any reviews on chips? there were 2 websites that advertised $69 chips, G-Force and SLR motorsports.
(They garuntee better performance and gas mileage or your money back) Thanks in advance!

The Vortec engines do not accept a simple "chip" swap because they are OBD-II compliant. Instead, there is a module that plugs in between the original ECU and the wiring harnesses. This likely costs more than $69...the JET module I had for my '96 Jimmy was $150 back then, but it did give some added pep.

Other mods include intake manifold, headers, cam & lifters, and high-flow exhaust.

But it you're looking for serious hopes for power, you should swap out the engine for a crate or used Vortec 350.

Hope this helps!