Here’s the Deal: We are offering a group purchase discount on any of our CNC ported Buick heads. Even if you purchased the heads somewhere else! We will take orders on the heads from now until midnight March 6. Enter”group” for the discount code and recieve $150 discount off of the purchase price. Your credit card will be charged 75% of the total order as down payment, and the remaining 25% will be charged at shipment.  We will start porting the heads the first week in march with delivery shortly thereafter. If you are sending us your heads we need to recieve them by the first of March. This discount is valid on any of our CNC ported Buick heads and is valid from 2/14/2011-2/28/2011. CNC Ported Buick Heads. Please CONTACT US with any questions

http://www.edelbrock.com/automotive_new/mc/cylheads/pro-port/index.shtml