EDELBROCK PRO FLO 4

I also checked the distributor it also did not clear the intake I will be calling edelbrock tomorrow because after all the money I spent on this intake and heads plus I ordered all the recommended parts to use with this set up its ridiculous that I would have to do any machining I will give an update tomorrow after I talk to them

They will most likely tell you to send it back. They have known about this issue for almost 2 years now since I first reported it. (According to them) Their claim at the time was “we’ve never seen this before”. Hard to believe after all these years making manifolds they could have this type of issue. I had two castings with this identical problem. Seems they would have recalled the unsold units and fixed them, but why do that when the customer can do their R&D for them? Another post above with threads not tapped?? WTF???

In all reality it’s easier to fix yourself than send it back.