Hi Bull,
Welcome to my forum.
Although Neil's reply was rather abruptely presented, he does have your best interests in mind.
Neil is correct and is giving you the best advice and as a customer he's speaking from independent experience.
In direct response to your post I'd give the additional advice;
1) We can't give you jet size advice, because our systems are entirely different to ALL US brand kits. We use UNIQUE jet locations and UNIQUE jet sizes, so no advice we would normally offer to our customers, would be suitable for the kit you have.
2) I'd stall well away from ALL 'dry' arrangements, as they are even worse than wet US brand kits.
3) If you want an enjoyable nitrous experience, follow Neil's advice and dump the brand of kit you have now and buy one of ours - that's NOT because I want a sale, IT'S JUST TO SAVE YOUR A LOT OF TROUBLE.