Hey there Gt-40X is one of the best heads you can buy it is very hard to get them in stock but you can get them at alot of mustang place,, JEGS,SUMMIT,EXCESSIVE motorsport, theres other places too, Sorry but there are really called GT-40X turbo Swirl, my bad,i will make the corretion, i got them from summit. 40 series delta flow are your more quiter muffler i dont mean regular 40 series either they are alot loudier.
Ernie
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93 GT 351 to 393 stroker, GT40 upper and lower intake, GT40X Turbo Swirl heads, holley 80mm throttle body, 255 fuel pump, 42 lb injector, JE pistons, Comp cam, comp lifters, comp pushrods, comp springs, crane Roller rockers. Trick flow Crank Shaft, comp Timing chain. MSD 7 series ignition, msd hvc2 coil, MSD timing adjust, MSD Pro billet Dis, Hooker long tube, Off road H pipe 1 chanber race flows, 4.10 gears, Vortech cooler and T-Trim with a 25lb boost AND LOTS MORE.
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