<VV> Ultravan's new SuperTrapp, Vacuum/Boost gauge and O2 sensor

[Jack Kean]

Ok. I'll bite. How can I determine what size the high speed enrichment 
ports are?

jack kean

Bryan Blackwell wrote:
> Before increasing the mains, you might check to see what carb bodies  
> you have - *there were three sizes of high speed enrichment ports*.  If  
> you don't have the biggest ones that might be worth experimenting with.
>
> How do you like the sound?
>
> --Bryan
>
> On Jul 27, 2008, at 2:29 PM, Dan & Synde wrote:
>
>   
>> With the new O2 sensor, I now realize that I'm running a bit lean in
>> the upper rpm range. It's fine at idle and cruising below about
>> 2500 but as the engine speed increases, it leans out a bit. I'm
>> running 53 main jets but am now thinking of increasing them to 54's.
>> given the new information.
>>     
>
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