when im in overdrive going up a hill i start getting spark knock and the car starts sputtering. it also sputter when at wot above 4500 Rpms.

i was wondering what sensors are used for the pcm to adjust the timing on an lt1. i have an lt4 knock module and a new mass air flow sensor if that helps.

i havent hooked it up to anything to see how much timing is being pulled but i will do that soon.

 

Doesn't pre-det in Drive going up the same hill? Or in drive on a flat stretch? Could be a variety of things :\