Originally Posted by
farmtruc
I'm assuming you're referring to an NA 5.3L?
If you have a charger on your 5.3L, it'll be decent, but from what you posted, no way in a 5.3L NA engine.
If you're gonna go thru all the trouble of installing an FI cam in an NA engine, get the correct cam.
You'd be better off with an LS6 cam.
The last truck I tuned with this cam in it, felt decent up to 4500rpms, then was a dog after that.
Similar to the other two, had the same feeling and characteristics.
There are mild cams out there that work well with or without chargers, but this one doesn't.