Hello
i have a early 289 engine i have had for years in the garage it is complete carb to oil pan, i don't think it is a hi-po, but has a few quirks, such as the heads are slotted for push rods, it has the non rail type rocker arms. has c8 harmonic balancer, engine cast 4D2 c40e-6015
engine tag is 289 65 1 4d 550 c
heads are 289 64 4D2
carb c57f-c b5 ce
i dont know if it is a a code or maybe d code?? any info apprecaited thanks