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1968 Chevy II

Code Displ. & Carb. Comp. Ratio
OA, OC, OH 153" 4 1 Bbl. 8.5:1
BA, BB, BC, BD, BF, BH 230" 6 1 Bbl. 8.5:1
CM, CN, CQ, CR 250" 6 1 Bbl. 8.5:1
DA, DB, DE 307" V8 2 Bbl. 9.0:1
EA, MK, EE, MM 327" V8 2 Bbl. 10.0:1
ML, EP 327" V8 4 Bbl. 10.0:1
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