So I got my RV275s in the mail today. I have a question on the removal of the old ones. I don't want to pull the lines off the pump end, but I got new O rings for the transfer tubes so they have to come right out. Can I just loosen the hold down brackets and gently move them out of the way enough to get the tubes out? I have checked the net and watched pepsiocean's video so I'm all good with the rest of the procedure, just not sure about the lines is all.

Yes, leave the lines hooked up to the pump but pull out the 5 or 6 8mm bolts holding the lines to the intake plenum. Make sure you pull the tubes before the injectors or you will booger them up.

I've done that method but you really got to be careful with the line not to bend them. Also getting the crossover tubes out is a bit tough at times.