Turbo 4.9 on the Dyno

THE SPECS:
Block

• 1981 301T Block
• .030" over bore (making it 306 cu. in.)
• Forged, Flat Top Pistons
• Stock Connecting rods, shot peened and fitted with ARP Rod Bolts
• Stock 301T Crankshaft
• Moly piston rings
• TTA Performance 252H Comp Cam and 301 Lifters
• Comp Cam true roller timing chain
• Luhn Performance grooved cam bearings
• BOP Engineering One Piece Viton Rear Main Seal and oil pan gasket

Heads

• 1981 301T cylinder heads
• Ported behind the valve seats on intake and exhaust (ports are still stock size)
• Removal of AIR pump "bump" in exhaust port
• Narrowed valve stem casting boss
• Stock size valves with performance valve job and back cutting
• Stock intake ports and intake manifold ports (no porting)
• TTA Performance head gaskets
• Stock 1.5 ratio rocker arms

Turbo and misc.

• TTA Performance upgraded turbo
• Ported carb plenum to match turbo
• 1980 301T carb with upgraded jets and metering rods (for dyno)
• 1980 301T distributor ESC by passed (for dyno)
• TTA Performance 2.5" down pipe
• TTA Performance prototype shorty header system
• TTA Performance water/alcohol injection
• TTA Performance manual boost controller (set to 14 psi)
• Stock 1980 air cleaner and paper air filter
• TTA Performance plenum coolant hose (engine tested at 140° water temp)
• 93 octane pump gas
• Timing set to 30° total timing