Do you Have a engine with a TBI manifold?. 4.3, 5.7 and 454?. Don't have the computer and wiring harness?. Or just want to convert to a carburetor. This is the part you need. One TBI base gasket. It's hard to see in the picture but the bores are tapered to adapt the narrow 2bl spacing to the wider TBI pattern without hurting performance and airflow.
