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

[Bryan Blackwell]

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.