Technical Specifications
Year/Model: 1969 Jim Wangers Signature Edition GTO
Race Weight With Driver: 4,350 lbs
Curb Weight: 4,100 lbs
Fuel Level When Weighed: Full
Fuel: 93 octane
Engine: Butler/IA II
Cubic Inches: 505
Induction System
Fuel Injection: FAST
Throttle Body: FAST, Dominator-style, 4150
Injectors: Edelbrock 44-lb/hr PICO
Intake Manifold: Edelbrock
Fuel System
Pump: Aeromotive, electric
Lines: Aeromotive -8, -6
Regulator: Aeromotive, set to 45 psi
Heads
Casting: Edelbrock
Head Porting: Butler CNC
Flow Numbers: 332/265 cfm at 0.700-in lift
Valves: Ferrea 2.25/1.74-in, stainless steel
Bottom End
Pistons: Ross forged aluminum, flat-top, 4.350-in
Rings: Total Seal Classic Race, file-to-fit, 1/16, 1/16, 3/16-in
Rods: Eagle forged-steel, H-Beam 6.800-in
Compression Ratio: 10.9:1
Crankshaft: Butler forged-steel, 4.250-in stroke, nitrided
Rotating Assembly Balanced: Yes
Camshaft
Brand: Comp Cams hydraulic roller
Duration at 0.050: 248/254-deg
Lift With Specified Rocker Arms: 0.618/0.618-in
Lobe Separation Angle: 110-deg
Installed Position: 107-deg
Ignition
Distributor: MSD Pro-Billet
Amplifier: MSD 6AL
Coil: MSD Blaster 2
Wires: MSD 8.5 mm
Spark Plugs: NGK R5671A-7
Total Timing: 34-deg
RPM that total timing is reached: 2,800