what would cause oil to come out the dipstick at high (5800 - 7000) rpms...

does not smoke at idle, runs fairly well, no miss that i could tell...

 

because of high rev of course

(do u have an oil after market breather)??

 

lol...

No, its using the stock style pcv

 

ok have you checkd your oil level ?
if it remain the same or loosing slightly its mean because of your high rev.
try to deleet the intake to throttle oil breather and use an valve cover breather, it could help alot. i did that

i hope this could help other wise take it to the nearest work shop ,let them check it so at least you can sleep well if you know the problem (probably your high rev ).

 

well i built this motor from the ground up, it really just started doing this (as far as i can tell), i guess ill try the valve cover breather and see if that works

 

How old is the PCV valve? Maybe try replacing it first and see if its still doing it. You are obviously getting high pressure in the crank case that needs somewhere to go.