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Message: <blockquote data-quote="bigB653" data-source="post: 731843" data-attributes="member: 10220">Hey guys, so I finally decided to pull the trigger and buy a Vortech supercharger for my 2003 GT. I am buying it used from a guy on Modular Fords and I have a few questions for you all and want to get some opinions. I'm hoping to be making 400rwhp on the stock block/internals. So to start off, here is what is included in the kit:-Vortech V2 SQ w/ ~4-5k miles on it-'00-'04 Mounting bracket-eBay custom intercooler w/ all necessary piping and mounting assemblies-Vortech Mondo Bypass/BOV valve-Steeda Powerpipe-Seimens 42lbs injectors-PMAS MAF calibrated for the Seimens 42lbs injectors-3.33 pulley-A Goodyear Gatorback belt to fit the setup-The oil feed/return lines-All the other misc. bolts/screws/nuts/hoses/connectors/band clamps neededHe says all I should need is a fuel pump and a tune. I think I will need different (colder) spark plugs as well.My question(s) are:-Is the Vortech Mondo valve too much? Vortech recommends for 12psi+ but has a rating of 650+ cfm @ 10psi??-Which fuel pump setup is best for 400-500 hp? I have read very mixed reviews about the SVT Focus pump being able to support 500+ rwhp in some cases, where in others they max out at 360rwhp? What could be causing this difference? The use of a Kenne Bell Boost-A-Pump?-What spark plugs do you all recommend?-What do you guys think about this setup? Is there anything you would recommend I change or upgrade? -Lastly, is 400rwhp smart to shoot for with a daily driver on a stock block and stock internals? What is the weakpoint that everyone says the motors are only good to 4XX rwhp? What should I be most concerned about upgrading in the future? The pistons/rods/crank, or those three plus the block?I realize these are a lot of questions, and I am sure some of them have been answered before and I have searched for some, but having all of the answers in one post will help me a lot. Thanks!Oh, btw my current mods are: MGW short throw shifter, Bassani O/R X-pipe, Borla Stingers catback, and 4.10s. I also have Maximum Motorsports subframe connectors waiting to be installed. Hopefully I have given enough information for anyone trying to help me in my search for more knowledge :icon_salut:</blockquote>