The CRX suffix was used on two versions of the 350 in 1975--a 4bbl, 155hp version for Chevelles and Impalas/Caprices, and a 2bbl, 145hp version for Camaros and Novas.

My source for this info is here.


Curt
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1953 Chevy 6400, 1957 Chevy 2dr Sedan
--"Mediocrity is easy, the good things take time"