OK, what we have here is an 85 Tri-z with a drag ported Alcohol-burning YZ250 engine in it. we have all the lines hooked up how we believe to be correct, following the flow arrows stamped on it. Now, we fired it up and it ran for a few seconds and then it blew that snap-close gas cap lid wide open and spewed alky everywhere...as the engine revved to the moon. I need to know what the heck is going on. please help