Intake manifold. Copied Elddebrock performer RPM.

Looks like a Edellbrock performer RPM. But it's not. It must be Chinese knock off. I was planning on. Using this on a small block mopar 340 LA. It appears to have both holes for LA and Magnum engines. Has anyone ever used one of these?
Is this a good Intake? I toughtI was purchasing an real edelbrock performer RPM. Guess thT why it was cheap. Please advise me if anyone has experience with this intake. Thanks.

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I you do a Speedmaster intake search you can check to see if they are the same. It also came with both bolt pattern. I posted before and after porting numbers and lots of pictures. I sold it to a member. I was hoping it was based off the LD340 but the runners were more LD4B (318) sizing. A nice gasket match and unless it’s a strip only car you will probably be happy but it not an RPM.