[haberslober]

the torque should be around 14-16 foot pounds

 

[haberslober]

the silencer is to quiet the sound of the intack and if the intake on the silencer is plumbed right it will take in cold air from the out side witch will make you have more horsepower

 

[haberslober]

the timing could be wrong

 

[haberslober]

is it back fireing

 

[haberslober]

theres a service manual you can buy and it will tell you the correct timing

 

[haberslober]

you could have spark plugs that burn to hot