I have a 95 ex coupe w/D16Z6 (70,000 miles). The engines internals are all stock but I have the following done to it: DC (4-2-1) header, 2.5 inch mandrel bend ehxaust w/Skunk 2 muffler, AEM short ram intake, Skunk 2 66mm throttle body, Skunk 2 intake manifold, MSD 6AL ignition, race plug wires and V-power plugs, it has a Apxi V-AFC II and has been tuned to 110 whp but since then I took off the AC, power stearing and stripping the trunk dropping about 70 lbs. So now I would think the car is more like 116 whp. I always use 93 octain gas and do regular oil changes with synthetic oil. Basicaly I have just made the car breath better and in the future when I get it ported and polished with a new Skunk 2 top end it will respond better. But are their anyother things other then dropping more weight or forced induction (including spray) I can do to givve me more puwer. I have heard of others putting in bigger injectors or putting a fuel pressure regulator in for increased fuel but without more air (they both had N/A cars) I don't really think it would do much. Any help would great

 

If you are dead set on going N/A with your D-series, check out this guys build. I would be hesitant on getting carbs unless I knew a good motorcycle tuning shop in your area, but they make great power on D-series.

https://honda-tech.com/zerothread/1867431