ABOUT THE TEST CAR
Model of Car: '73 Pontiac Ventura
Race Weight: 3,760 lbs
Converter Stall Speed: 3,400 rpm
Transmission: Turbo 400
Rear: 3.42:1 Safe-T-Track
Slicks: Mickey Thompson ET Streets, 11.5x28, Tread width 8.6"
Launch Technique and RPM: 1,400 rpm
Shift Points: 5,000/5,600 rpm
RPM at the Traps: 5,100 rpm
60-ft Time: 1.67-1.69
1/8-mile Time: 7.49-7.52
1/4-mile Time: 11.79-11.86
Trap Speed: 114.49
ABOUT THE TEST ENGINE
Block: .060-over 455 = 468 ci
Crank: Stock nodular iron, 4.21 stroke, rotating assembly balanced
Rods: Crower forged steel, stock 6.625"
Oiling System: Stock
Pistons: TRW forged, flat-top, zero-deck
Compression Ratio: 10.48:1
Heads: KRE Aluminum D-port
Valves: Ferrea stainless, 2.11/1.66
Valve Job, Intake, and Exhaust: 35* top, 45* seat, 60* under, 75* bowl
Chamber Size: 85 cc
Head Gasket: Fel-Pro 8518
Rocker Arms: Crane, 1.65:1 roller, Rhoads lifters
Valve Springs: Crower PN 68405, 1.700 height
Seat Pressure: 115 lbs
Open Pressure: 310 lbs
Pushrods: Comp Cams 9.400
Cam: Crower PN 60919, hydraulic
Duration at .050: 231*/240*
Lift: .517/.517 with 1.65:1 rockers
Lobe Separation Angle: 113*
Installed Position: Intake set at 109* centerline
Intake Manifold: OEM '68 cast iron
Mods: Reworked at carb flange to fit Holley flange (without an adapter) as well as Q-jet
Carb: Q-jet, .073 primary jets, .048 custom-sized secondary rods
Distributor: GM HEI, 20o mech. adv.
Timing:30o total, all in by 2,500 rpm
Plugs: NGK R5671A-8
Exhaust: Hedman 4-2 Headers 1 3/4" primaries, 3" collectors, 3" H-pipe, Flowmater 40 Series mufflers with 3" inlet/2 1/2" outlet, full-length compression-bent tailpipes