Anyone ever tune one and know what PCM this is?
It is a 454 that appears to be a L29 but has coil on plug and is called the L21.
Looking for PCM P/N for L21 454 (99 P12 RV Chassis)
Anyone ever tune one and know what PCM this is?
It is a 454 that appears to be a L29 but has coil on plug and is called the L21.
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