How to make 400
If you want to know "why" more intake duration than exhaust duration makes better torque, you'll have to ask someone else. I searched dyno graphs online and found a few that matched what I needed. I then called up the people and talked to them about the cams.
The TR230/224 was the best mix of power and reliability that I could find. It wasn't absolutely insane, so I didn't have to worry about parts failures halfway through a race. But, it gave very nice power.
Upgrade to a FAST intake, TB, and a small/moderate cam (224/228 or TSP228) to get where you will be happy. You'll want enough fuel and a perfect tune to get there. My .02...
A good set of heads will make this much easier.






