ok ive been reading on the stock lt1 knock modules and it says that it can retard timing due to false knock from such things as headers and roller rockers. well i have both and i still have the stock lt1 knock module. the lt4 one is fairly cheap so would it be a good idea to change it to the lt4 or keep it with the lt1? and if i did change it to the lt4 about how much power if any would i notice/gain?

 

The Lt4 module runs about $35-$50. It won' give you more power, but it will eliminate power loss if you are gatting false knock indications. False knock is common if the car is equipped with headers because the headers generate noise similiar to that of engine knock.