on a 6.0l the handheld programmers are a joke unless you own a real programmer....

Nelson has the best tunes for the price.... and unlike the PCM4less tunes you can get far more options...

 

what is nelsons?

 

http://www.nelsonperformance.com/

I first got wind of these guys after I joined ls1truck.com They have more threads on nelson vs the power programmers than we have on cranking torsion bars...

 

They have the fan conversions also for anybody still following that topic on this thread....

 

As Muddy says. You should look at the Electric Fan conversion as part of a performance upgrade. Do the CA intake and get a Programmer. Exhaust too. In theory you could get the following......I stress in theory...only a Dyno would prove the figures. Something to think about, based on percentages and Manufacturers claims.
STOCK PERFORMANCE 325 HP 365 TQ[/b]
Upgrades (CAI/Elec. Fan) 352 HP 399 TQ[/b]
Superchip (87 Oct) 368 HP 416 TQ[/b]

 

The LQ4/LQ9 6.0lscan easily see 440+ with a mild cam and intake... and of course the proper timing/tuning