Chevy Impala Tuned Port Injection - A Big Improvement Photo Gallery
After the manifold was tightened down we installed an electronic distributor and a set of Taylor Spiro Pro 8mm spark plug wires. At this point the intake runners were installed. The passenger-side tube has a taper on the top front and the driver side tube is level across the top. We also installed an S&P 360/10-degree O-ring swivel water neck with a 195-degree thermostat. This water neck will fit under the throttle body and allow you to position the upper radiator hose where needed.