New kid on the block. Have a 08 Shelby 500 with 20,000 miles. The clutch is slipping when it heats up. Ford wants 3,200.00 to replace it back with stock clutch. What would be the best clutch & fly wheel to replace it with. Have 510 rwhp the stock clutch can't take it. Looking Centerforce or Mc Leod RST clutch kit?? Just need some feedback on it.