getting hot

[adamk85]

2000 wagon 6.5 turbo diesel. Just installed aluminum radiator and made new
fan shroud with 14in fan and 12 in electric fans and fan controller. has new
thermostats in about 8k miles ago. it is getting up to 230 deg F after about
10-15 miles. it is about 95 deg outside right now. It can sit and idle and not
get above 180. also when idling after awhile it will hiccup and blow some black
smoke a couple of times. 2 times now on startup it has tried to rev really high
without touching throttle before i shut the key off. stumped?????