So I am about to buy an SVO that is converted to a single pump for $1000. Only problem is it needs a fuel pump. Now I'm wanting to run a Walbro 255 and I've searched but my knowledge about SVO's is very slim. So basically Is there a certain one I need to buy and if I buy the 255 will it just replace the single intank pump? Any help would be awesome. Thanks!

 

What you want is the Walbro GSS340. It is a pretty simple swap once you get the tank down.