Fuel Tank Sender Unit: Camaro Firebird NOVA 76-81F w/Chev V8Replacement fuel tank sender unit for use in various V8 models listed. Choose if WITH a return line or not.. most all do have a return line.. look down onto your fuel pump and see if there are 3 lines.. Two in and ONE out up to the carby if thats the case. .. it is a unit WITH a return line. .. but if only two lines.. the it is WITHOUT a return line type. Reproduction part of good quality and value. Fits all V8 engines. Fits: 76 81 Camaro With Chevy