Hi Larry, I can’t help you much. I’ve never seen the Edelbrock intake but I did have the Speedmaster here for a while. It seemed kinda crude / ruff on the inside.
I have a Speedmaster single plane carb manifold and it seems pretty well made. It had RAIV sized ports and was a pretty clean casting. So I ordered the injection manifold thinking it was probably the same manifold except with bungs.
That’s not the case. The casting of the injection manifold was much worse to my eye and the ports were standard size and off a bit but not too bad.
I wasn’t thrilled with it. When I found that the fuel rails they list for Pontiacs were wrong, I just sent it all back,
Unfortunately I didn’t take any pics.
Murf
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