gmc fuel reg or fse boost valve

[henryvtr]

i no most people think these are a waste of money but to gain bhp you need to burn more fuel,(simple rule that applys to every engine) so these must be a worth while upgrade

[AXracing]

It does not really work like that. To burn more fuel you require more air. But anyhow if you just add more fuel the engine management will see and lean it off again.