CORVETTE MODEL REFERENCE 1978 ROCHESTER 4BC I I 1 Follow procedure outlined below to determine carburetor andlor part number 1 Detemwine vehicle model check VIN DIVISION CODE I 2 Determine engine and carburetor type I 3 Part number can be determined by cross referencing corresponding column number with same column number on chart vm V PRODUCTION DIV CODE USAGE COL NO I 17058582 1 B F X Y 350 wlA T Alt exc A C 3 I I 17058584 1 B F X Y 350 wIA T A C Alt 4 I I 17058202 1 B F Y 305L wIA T Fed exc A C Sp Hi Perf 1 I I 17058204 1 B F Y 350L wIA T A C Fed exc Spl Hi Perf 2 I 17058204 1 B F Y 350L wIA T A C Fed exc Spl HI Perf I 1st Design 2 I 17058203 1 Y 350 wIM T M20 7 I 17058210 1 Y 350 wIA T Spl HI Perf 10 j 17058211 1 Y 350 w M T Spl Hi Perf exc A C 8 I 17058228 1 Y 350 wIA T A C Spl Hi Perf 9 17058502 1 Y 350 wIA T C lif exc A C 6 17058504 1 Y 350 wIA C Calif A T 5 I 17058206 1 Y 350 wIA T A C Fed exc Spl Hi Perf 2nd Design 11 I I I I GM PARTS DIVISION GENERAL MOTCRS CORPORATION 0HEVROLET 14 REV 12 78 1 c 3 000 GROUP