Edelbrok perf. intake

What those holes are for is the EGR valve on the side of the intake.

There supposed to be there and do not need to be pluged. The intake will operate fine. IF you do not want to use the EGR valve, leave it disconnected from any vacuum lines as the valve remains closed with no vacuum.

There is no performance loss with a un-used EGR valve on the side. The holes in the floor will not effect performance 1 bit.