That's not bad for stock. Right there with my 340X heads. That goes to show that all the stock heads are pretty close.
I see Bobby (BJR Racing) posted some of his. Man I wish I could get them numbers.:tongue9:
To Sublimeswinger. I haven't been able to find much written about porting them either. The first set of heads I did was allmost 20 yrs. ago and for a 327 Chevy. One of the magazines had an article on how to P&P your small block chevy heads and that's all I have ever seen. Fast forward 20 yrs. and I did my 2nd set, my 340X heads. Going by memory I did the best I could and they turned out decent. Not record breaking but a nice increase still.