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Up for sale is a new set of Edelbrock E-street big block heads. They are part number 5090 which started out at 75cc chambers. They were Cnc'd by Hughes engines and also received their heavy duty upgrade. The chambers are now roughly (not verified) 80cc's. These heads are 1400+ dollars and the porting and HD upgrade was 1550. Per Hughes these heads will support 700hp. Flow numbers can be found on their website. I want 2500 firm for them. shipping on your dime. Please pm me with questions.