I think the supplied one in the Vortech kit is a Walbro. If not the Walbro will do, it's what I use.

 

O really? Hmm, ok. Any idea where to get a good priced one? Or are they all the same?

 

As a previous Vortech SC owner, here are my thoughts...

4.5" pulley is the right size for 9psi but I don't think the stock injectors will be enought for 9psi. You will need 550cc injectors for that. I also wouldn't push 9 pounds with stock CR. Get a headgasket. $100 part can save you thousands of $$$. Lose a couple of whp but keep it safe. I've never seen anyone use Apexi Neo but as the other members would also recommend, get AEM EMS. If your budget is limited, get at least Greddy eManage. All the BOV's will do the same thing. It only depends on your taste because most of them create different sounds. I would strongly recommend Greddy Type-S. It has been discontinued 2 years ago but you may find one used on eBay. Make sure it is authentic though. if it is $30-$40, it means it's a knock off

Hope it helps...

 

Ebay has some Walbro's for a decent price.