im new to the forum im working on my daily driven 97 4.3 auto trans 4door i have a tbar tweek and shackle lift and 235/75s on 8 in rims ive done the throtle blade mod high flow cat and muffler stock air box with good filter. im looking for more mpgs than power but ill take the power im sending my pcm to wait4me to be tuned im wondering if there is nething else i should do thats worth my time before i have it tuned thanks in advance