I recently put pacesetter LT's and egr delete in my 95 formula M6. Went to the track and the car is missing above 4k RPM. I put it on the datta logger and my knock count is going up and my timing is dropping off like 15 degrees. I still have my stock knock sensor. Would a LT4 knock sensor correct this problem? Or is it something else.

 

Especially with headers, you will need the LT4 KM. Headers amplify valvetrain noise and it can be easily be misinterpreted as knock.

Additionally, from what you're mentioning, you'll definitely want to check for burned plug wires as well.

 

ok thanx

 

I guess you meant LT4 knock module. There is no such thing as an LT4 knock sensor.