My apologies this line gave to trouble, if you would like to send some pictures of the modification you had to make to support@inlinetube.com, we would be happy to make this right by you.
“Pinch clamps are terrible. Never could get them tight. I know how to install them. The fuel line end pieces should be double barbed but are not. With a single barb they just leak fuel. It’s my fault. I should have gone to Chevrolet. It would have cost a lot more but it wouldn’t have leaked.”
I am sorry you are having difficulty installing your kit. Please snap a couple photos of the issue you are having and send them with a short description to Support@inlinetube.com. We will get this to our tech and come up with a solution to this issue.