[68_Step]

I am replacing a Holley 4776 (600cfm) with a Holley 3310 (750cfm). The manifold is an Edelbrock Performer 2.0 and it had what looks like an Edelbrock 2732 adapter for (Square Bore Carburetor, Spread Bore Manifold) between the manifold and 4776 carb. I am planning on using a 1" spacer with the 3310 to help with fuel line clearance. The question: since I will be using a 1" spacer, will I still need the adapter? This is going on the 78 1 ton listed below.