S.C.
while you're trying to figure out this schedule. keep in mind that it is likely that in about a 1-2 weeks or so..your child will be 4 months and experience a common a growth spurt at that age... in which he will not nap much but be hungry often.
i suggest that if this happens, you feed him as much as he needs, as often as he wants (probably whenever he's awake) and don't make any drastic changes to his schedule...keep it as consistent as you are able to...
he should fall back to the original schedule soon enough.