Cool, I would like to keep it all simple, and continue to run the Rochester MV(I think thats what it is) carb on the 250. Am I assuming correctly that there is linkage available for the carb that will take the cable from the 700r4 without issue? I know the 700r4 flexplate is different than the THM350(holes for torque converter in different location) Is a 700r4 flexplate from a small block useable on the back of the 250? or is there a balance issue?