Unfortunately, due to call volume, I can no longer take calls,  Please check the FAQ's page, the answer you seek may be there.  I will continue to reply to e-mails, please be patient, though.  I had to disable the website message system as the volume there was also too high.  Thanks for your patience!  If you want to be notified when I start taking orders for cylinder heads, please send an email to info@vintageinlines.com