Spencer and Nick have worked hard to fix the buggy-ness of the old Adrenaline tunes. Power on a Vp44 is indeed limited compared to the commonrail and P7100 powered trucks. Lots of customers with 125HP sac injectors, 62mm turbo and Adrenaline can make 500HP. Its a decent set up for these old trucks that is great bang for your buck.
Having a smooth Clean truck (like efi tuning) that a truck owner does not need to pay hundreds for custom tuning is what we are after. The Data logging, higher RPM and high idle features don't cost extra either.
OP if you need some good injectors we can help you there.