Get the Mach 400. Will take as much power as the stock rods can reliably handle (around 425-450whp) and is very light pedal feel, dead silent like stock and bites hard.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.