Chevrolet introduced Tuned Port Injection (TPI) in the mid-1980s, which improved performance and driveability, compared to carbureted engines of the past. The lightweight construction and new ...

Abdominal ultrasonography findings were unremarkable. A trigger point injection (TPI) with 1% procaine (5 mL) at the suspected site of ACNES significantly improved pain, and the patient was ...

In its place is a Chevrolet 5.0-liter (305-cu.in.) V8 with tuned port injection from a third-gen Camaro IROC-Z. Depending on the car it came out of, the 5.0-liter TPI was rated at anywhere from ...