I have a 68 250 in with lower end in good shape and an 81 250 with what sounds like a bad main bearing. I'm wanting to keep the 200r4 with OD. Just wanting input on which is better? keep the integrated head(good condition surprisingly) for ease of TV/kickdown cable or find a way to make the monojet work. It's going into a 59 Apache. Also I considered an adapter but couldn't find anything Rochester monojet to Varajet II. Thanks in advance for any input.