If the 225 is grossly under-valved as claimed in post #35, then a 102-ish LSA as mentioned previously is a good idea. Use duration to control power range, idle quality.
If you think 102 is tight, Jon Kaase, multiple EMC winner, used a 98 LSA cam with 92 ICL to win the contest with a 400 Ford engine that made 660 hp with a broad tq curve & a cam that was not that huge in duration.