[greg fulk]

in IHRA the 250 is 140hp & the 230 is 135 hp Mark.....that being said the 250 crank is a good 18Lbs heavier!!!!! THE 250 WILL NOT RUN WITH THE 230 EVEN @ THE SAME WEIGHT! All the pistons that are approved for the 283 are also approved for the 230 ....the 250 has like 3 pistons to chose from....Now then what money do you want to spend???? I can tell you what to buy ....but it's not a cheap combo (if you want to go fast....it you want to run the index VERY cheap)