Bearpaw
.040 Over
I finally got the EJK tuner I am pleased with it ( Triple K & N ,Cat box delete, Tors , EJK Tuner 155 hp 156 ft lbs )Yup - but do them all at once . If you don't have easy access to a tuner - then consider a Power Commander plus Autotune and ask HansO for maps. And heed Arts comment on the exhaust headers - change them.
Download and familiarize yourself with Tune ECU. Even if you use a PC5 you'll need it.