Edelbrock performer RPM intake...is it right for my engine?

are you talking abut factory snorkel air cleaner?thing about spacers are they work differently on different engine combos.nothing seems to be set in stone. 1'' 4 hole spacer worked better on the aforementioned ld340 intake better than a 1'' open spacer.i havent played with spacers yet on the rpm yet, im still enjoying the new tire frying torque i gained