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#70037 is the V8 set of non-adjustables. I don't know if that translates to the S7307 or not. Best to call East Coast Performance/John Mercedes, he was the engineer that made the first set for harland sharp to duplicate.
Harland Sharp S70047 are the 1.7 rockers for the Magnum V6. $308 at summit right now. look around though you might find something cheaper. The 1.7's are nice on the V6, they allow it to breathe at the faster highway speeds now vs the 1.6, (Harland Sharp S70046).
The next best thing is a 10" air cleaner with a 2"-3" K&N air cleaner, If you don't want it to sound like a 4 barrel carb then you can keep the stock box and a K&N filter or mod something from a V8.