Should I change my cam?!

since this new build and you have the mp cam
degree any cam when installing
and you kept the lifters in order abd have checked them for being concave/ worn I'd run it and see
duration on that cam is like a 275 comp or 280 crane
get your tune right
do a compression test
see how it pulls loaded starting up a hill
etc
check your stall speed
if you then think you need a shorter cam advance that one 4 degrees and retest
of course you can get a new cam that is both shorter and has higher lift but do your homework first