Ported and polished by Fox Lake. Have flow sheets somewhere. Produced 262CFM exh @ .500 and 310CFM int. Best flowing exh numbers of any other b head I have seen.

Heads have been resurfaced and come with:
Crower Springs and retainers
SHM +2mm exhaust valves
REV +1mm Intake valves
New guides
New seats
valve job done by fox Lake

I have a ton of money invested in these heads. Valves alone were $18.5 a piece($600), + 100$ for set of locks for SHM valves. $500 worth of Springs $1500 worth of port work valve job. New seats and guides more $$$ Deck work $150, list goes on and on.

Heads were ran 50 miles. $3250 takes them