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1959-1964 Chevrolet Impala 283 CID
7L V8 1975 - 1978 GMC C15 Suburban 350/5
Alpha-N Combination
6L V8 1980 - 1986 Chevrolet G20 305/5L V8 1962 - 1968 Chevrolet Corvette 327/5
Cam Sync Kit, +.400 Raised Cam - 556-120 2-bbl-carbs 1959-1964 Chevrolet Impala 283 CIDOverview: A cam sync signal is required to run sequential fuel injection. This tells the ECU which cylinder is cylinder #1 (or the first cylinder in the firing order as entered in the software). These kits were specifically designed to provide a "plug & play" cam position signal to Holley EFI systems, although they may be used with any EFI system which can read a digital, square wave input cam signal. They are intended for use with Big Block Chevy
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