As most have mentioned, your bottom end, if balanced and all happy, should be fine to 8k+. If you had a B230 bottom end and a stock harmonic balancer on the front of it, you are risking things by going over 7000-7500rpm. Especially not recommended if it's old and cracking! You don't have that, running a B23 though, so you should be fine.
Your main concern is valve float. If it is indeed an IPD Turbo cam, they are pretty mild and I'd default to saying you're going to be ok. Pay attention to that, though, as if you do get float, it's obviously very hard on things and worst case you can drop a valve if the keepers get loose.
With a much smaller and lighter piston, too.
What camshaft? And on my RSI head, I also recently had the valve spring seat pressures measured as barely above stock with my "7500rpm valve spring kit" from RSI, too. Not cool when I am about to slap in a much larger than stock type camshaft.