+1 on the Fueling 525...took out the TW6-6, installed the 525 and got exactly what I was looking for. The woods do pull harder but take more RPMs & fuel

 

I've got the 204s and 1.725 SE rockers in my 103 bike. No clearance problems with the stock flat tops and stock heads. Theoretically, the high ratio rockers should be good for an additional 3-4 hp/tq. I didn't run the cams without the rockers, so couldn't speculate whether or not they made a noticible difference.

 

that sound like a winning combo right there....when are you doing this?

thanks

 

Have you concidered the SE 254e cams?
I'll tell you what go here and read up on
SE cams http://www.harley-davidson.com/wcm/C...bmLocale=en_US

 

There are no clearance issues with stock heads. The cam was intended for stock configurations; different story if heads are decked.

The higher lift will show up on a dyno if the heads are ported. IIRC, 204 lift is .508" and stock head flow flattens out at .500" but ported heads will flow to .600", or at least they should.

4HP/TQ for $138; that's about $35 per; not a big absolute gain but pretty cost effective compared to the cost of other upgrades in terms of $$/HP-TQ.

 

To the OP, according to my cam calculator, the 204 pwerband begins at 2500, and TW555 begins at 3000. This is according to grind specs. Now, in actual install with all components considered, the rise of the torque curves would pretty much be neck and neck...

 

 

Has anyone ran the 4 degree dvance key with the 204's. would it be worth in on a 2008 nightrain?

 

I went ahead with the 204 cams and 1.7 rocker arms
I got 96 horsepower and 114 ft lbs of torque
Love the way it runs.

 

What pipe do you have? What tuner?