hey everyone never posted anything but not new to the club.
so i have an s13 with 250,000 miles apparently rebuilt engine
about 60+ miles ago runs perfectly seems to lack some torque though but anyways just wondering if theres any little things i can tweak or mod to get some torque or hp gain???
probably the brokest guy in the world about now so cant do an engine swap anytime soon and want to start working on my car again =)