Oldrodder, any recommendations made regarding the 250 also apply to the 230. In the late 70's there was a class of modifieds that ran six cylinder engines; we sometimes ran the 230 in the lighter cars due to the shorter stroke (3.25 vs 3.53). Induction was limited to a single two barrel so the volumetric efficiency was better with the 230 at higher rpm. I liked the flat top piston combination; it appeared to have better flame travel when used with the 194 head. The 305 1.84 intake valve is an easy installation or you can turn 1.94's back to a 1.875; I never liked the 1.94 in the 230 but some guys ran them. They are still a viable engine choice, just keep in mind that they have less low end torque than the 250 so "cam" accordingly for the street........fats
