Modify lml reed valve

hallo, i’ve just rebuilt my 84 px whit lml reed valve cases, polini 177 and dell’orto phbh 28 carb whit molossi manifold. I think that lml reed valve is very little port than a malossi sistem and worb 5 sistem but, i want tuned the valve. Who had do it? can i change the 2 flaps whit 1 carbon flap and resize the port hole?