HOLD THE PHONE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Tony, i have a set of very very very ported windsor jr's with the 1.94 intake and on a 347 i am making 431 RWHP. The problem you might have with to large a head is "velocity" when you slow down the fuel mixture you loose HP. BTW, I'll be selling my Jr's for AFR 205's once I get the "power adder" NOS
Oh, and im shifting right around 7000 rpm.