I am trying to decide which way to go. I have the chance to get a mechanical Hilborn injection system for my LS-6 454 and I also have a chance to get a complete tuned port injection set up. I am aware the Hilborn injection will have a rougher idle, but will put up mid and upper range power. I have never run or been around tuned port injection so I do not know its benefits and if it would be better than the Hilborn nostalgia set up. I would love to hear your input/thoughts as to which way to go & why. Thanks for the help.