I did a compare with your stock bin and the harris bin. You couldn't jump to the conclusion that the harris tune was bad. They gave you more timinhg in the high throttle area. less timing in the idle...

It looks like they didn't do much for the tune. I am pretty sure you could get it running much better tuning it yourself. It takes some time but well worth it. I am assuming you are able to burn...

When you say you changed it in the bin did also change it in the xdf/adx setup. If not it won't read rifgt on data logs or dash. I have a bunch of extra cam in my bbc and still use the factory...

I think with tan disconnected 5.7 is 0 and 7.4 is 3.9 in stock setting. I haven't read your bin but would guess with tan connected you should see in 20's on the lite.

Being as your truck is a 95 the pcm should be a 6395/7427 vintage and should have idle speed settings that use the iac. If your rpm's are dropping below min a place to look would be the settings and...