I have a 91 FXR with a 113. 11:1 compression Woods 9B mik 45 carb singlefire nose cone ignition bassani RR fxr 2 into 1 pipe.Heads qhere done flowed larger intake . Bench flow was 280+ @28 seems Like I am missing some HP. Bike hits hard but doesn't carry. What do you guys think? I know 130ft lbs is nothing to sneeze at but am I leaving ## on the table. Maybe different cam pipe or carb?

 

pull the muffler off it and make a run with just the header in place and see if it comes up. don't worry about mixture strength at the moment, you are trying to find out if you have a flow issue and if the exhaust is holding you back.
m

 

what did Tom and john think?

 

They said there is more power to be had but they said all around rideability could suffer. That being said they are running bored super G with thunder jets on there big 124'...

 

Ported stock heads? What size intake valve?

 

Should be up another fat 10, from the 113" we've dyno'ed
We like the 9F, but the 9B is a close second.
Scott

 

Hey Brad, I had a 9b in my 96" Evo with stage III heads that flowed 284 cfm and really didn't care for it.. it had the same curve as yours but hp was a little more consistent with the tq unlike yours... I took it out and went with a w8 and then back to my W6exp. A cam I had woods grind for me. Comes on early and stays late... But I'm running a Supertrapp and a G. I was running an E but went to the G not sure it was worth the upgrade to the G... The 45 should work well. If it didn't, I wouldn't think the torque would peak the way it does..

 

Intake 2.1 by Hannoms machine in Bay area.

 

You think pipe carb or heads.

 

I also had a Road Rage on mine. Nothing performed better than the Supertrapp... On my build. Ask Scott...