i want to put a larger throttle body on ultra classic any ideas on which one and what size

 

A larger throttle body doesn't necessarily mean more horsepower. You can actually ruin a good thing with too large a throttle body unless you have a complimenting engine build. What do you have for a build?

 

96 inch 255 cams

 

Save your money....a larger TB won't do a thing except disappoint you.

 

After you do a bigger build with head porting, then consider it or have your TB reworked by HPI and you would be happier.

 

A larger TB probably would give him a few more peak ponies, at the cost of low end tq. On and Ultra Classic though? Why you would want HP is beyond me. If it were mine I would be trying to get that TQ curve up. Bigger cylinders/pistons and some minor headwork would get you going. Probably would be close to the 5-$600 range you would spend on a TB. I personally think theres much better cam options than the SE also. But you already got em so what the heck.

 

If it aint got enough go now sell it and get a 650 sukzuki or yamaha or something. Nothing will make your street Harley fast.

 

Mine is fast.

Seriously, unless you have already done heads & cams the TB wont help.

 

You are better off waiting untill you can do a biger build. Save up and do it right the first time. It will save you money in the long run.

 

The stock TB is capable of flowing whatever stock heads and a 255 cam can manage. It won't do anything except waste his money.