1968 Firebird – Mitchell McCarthy

Build Specs


  • TCI Standard custom coil over IFS front suspension, Ridetech single adjustables, ~1-1.5” lower ride height than stock (front and rear)
  • TCI standard rear 4-link, single adjustable coil overs, with TCI subframe connectors
  • 428 ci Pontiac motor (from 68 Bonneville), stock crank
  • Kauffman Racing Equipment aluminum D-port heads 310cfm intakes, hydraulic roller cam (236/242 @.050, .590 lift)
  • Mass-flo (Pro-M Racing) multi-port EFI system, 1000 cfm carb style throttle body, Ford computer, 42 lb/hr injectors
  • Performer RPM intake manifold self-modified for multi-port EFI
  • Custom (home-made) fiberglass 4” ID cold air intake, 100mm MAF sensor
  • Hooker 1.75” primaries 3” collector super competition headers for 68-73 GTO (modified #5 primary)
  • Dual 3” exhaust with x-pipe
  • C6 ZR1 dual mode mufflers, after single chamber Flowmasters
  • Canton road race oil pan, PCV valve pickup in baffled valve cover
  • Richmond 6 speed manual transmission, 11” Centerforce clutch, hydraulic
  • CPP big brake kit, 18” C6 corvette wheels: Front 245/40s on 8.5” wide rim, Rear 285/35s on 9.5” wide rim
  • GM 10 bolt 8.5” ring gear from 72 Nova
  • Fiberglass hood
  • Links


  • https://www.youtube.com/watch?v=hVARzMpRceU
  • https://www.youtube.com/watch?v=FGQiZfdW6-4