Ok here some help guys this is the simple way to do it but I do recomend a pump and if you are going to use saito I recomend the EJRS Smoke muffler they rock my father and I made them about 2 years ago from thinking how to get the best smoke. We put the smoke nipple right on the manifold and made it from thicker metal and it has a few groves to keep the heat where it needs to be(on the smoke nipple).
Check it out I have ran this setup on most of my planes and it has not failed for over 2 years.
I have in cluded a pic of the mufflers and a B-17 that has four installed I have vido of it in action e-mail me if you want it. I do not know how to upload it here.





Happy Flying!!!
Eddie