According to the '68 Ford shop manual, the '68 dealer brochure and the Mustang facts and specifications manual the 302 4V 230 hp engine is the J code engine, optional on Mustangs and Falcon. The special order sedan racing engine was the 302 306 hp.
My '64 1/2 vert. Ordered May '64. D code 4 speed, handling package, caspian blue, accent group, Ford blue manual top.
'68 vert. driver. Owned since Apr '78. C code AT, AC, PS, P disc B, PT lime gold, standard black interior and top. NOS RF fender and left quarter.New top and folding glass.