The DA ignition accepts a 6 volt pack so that's what I aim for... (I end up going lion with a 6 volt regulator)

I'm sure you guys have tried here but if you have a Lowe's or Home Depot you may find it in thier lawn mower section...

If you don't find any and want some, I'd be glad to pick up a few cans and mail 'em to ya... They are only like $2 a can and makes two gallons at 32:1...