Whats the best engine to build out of a 350 and 400 small blocks.?

the 400 better storke & bore diameter

i actually wound up deciding to stroke the 350 block to 3.75 and bore it .030 over and build a 383 (382.74 actual cid) and put a rev limiter on it at 6500 rpm so that i dont spin a bearing or anything for a drag engine but thanks for the advice. personally i dont like 400 blocks cuz they run hotter and crack easier and i have never had luck with them. but other people like them so it helped pay for my project by seeling the 400 block