Years ago I used to buy three magazines every month religiously--then I got a dyno--then I stopped buying magazines. Coincidence?
Back in the 90's I was smart enough to print and keep some of the claimed flow charts from porting stock iron heads from Hughes. The big block heads were note worthy and hilarious. I haven't looked at them in years but I remember BIG flow numbers like 330 or 340+. I didn't know **** from shinola (to be fair I still don't know what shinola is) and ate it up--just like I did with the BigMouth's.
I am the very example of that poor guy in the quote. I build engines for a living ! It hurts when you scrimp and save and plunk out $3500+ on some super duper heads only to find out your 9 year old daughter could probably port better on a stock set of Eddy's--for free.
Mike I told you WAY WAY back that your heads are the issue. J.Rob