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Pontiac Pavement Pounders Shootout - Pontiac Heaven/Speedworld Motorplex Edition

Pavement Pounders Speedworld Motorplex 1968 Grand Prix Pavement Pounders Speedworld Motorplex Les Iden
Pavement Pounders Speedworld Motorplex 1968 Grand Prix Engine Bay
STRIP TUNING LOG
Run/TuningLaunch RPMShift Pt.60-ft1/8-mile1/4-mile
1. 35 psi in tires; 4 psi fuel pressureIdle5,0002.29.32/76.2614.65/91.34
2. Same; 5 psi fuel pressure1,0005,0002.339.33/76.5114.46/92.80
4. Same; 32 psi in tiresIdle5,0002.079.13/76.3414.28/94.82
5. 35 psi in tires; both fuel pumps working Idle5,0002.129.10/77.5714.13/97.36
BEST PASS CORRECTED13.54/101.62
6. SameIdle5,5002.19.07/77.4014.17/95.43
Top 5 runs are listed in the order that they occurred.
Run Notes: 1) Bogged out of the hole; 2) Same, 4) Best 60-foot, overshifted into Neutral on 2-3 shift, 5) Best e.t. and mph; 6) Best 1/8-mile, bogged out of the hole.

STRIP SPECS
Year/Model: '68 GP
Race Weight: 4,700 lbs, weighed at Palmdale
Curb Weight: 4,450 lbs, weighed at Palmdale
Fuel Level: 1/2-tank
Fuel: Pump gas, 91 octane
Engine: '69 428, YH-code, +0.030
Cubic Inches Before/After: 428/455
Engine Built By: Owner
Power Adder: None
Top End
Air Cleaners: 3 K&Ns
Carburetors: 3 '66 Rochester two-barrels
Jets, Front/Center/Rear: 0.070/0.066/0.070
Spacer Plates: 3/8-in phenolic two-hole
Intake Manifold: '66 Tri-Power, iron
Fuel Pump: Stock engine mechanical unit, Master aux. inline electric booster unit
Lines: 3/8-in, 1/4-in return
Regulator: Spectre, set to 4 psi
Heads: '71 400 #96,
Head Porting: Bowl-ported by owner
Flow Numbers: N/A
Valves: SI SS, 2.11/1.77-in
Bottom End
Pistons: Speed-Pro, forged, flat-top, std. 455
Rings: Total Seal, file-fit
Rods: Stock cast, 6.625-in
Compression Ratio: 9.1:1
Crankshaft: 455, "N" iron, 4.21-in stroke
Rotating Assembly Balanced: Yes
Camshaft
Brand: Comp Cams hyd. flat-tappet
Duration at 0.050: 224/224-deg
Duration Advertised: 270/270-deg
Lift with Specified Rocker Arms: 0.485/0.485
Lobe Separation Angle: 110-deg
Installed Position: Straight up
Rocker Arms: Comp Cams 1.52:1, roller tips
Ignition
Distributor: MSD Pro-Billet "Ready-To-Run"
Amplifier: MSD 6AL
Coil: MSD Blaster SS
Wires: Moroso 8mm
Spark Plugs: AC 45S
Total Timing: 34-deg
RPM Total Timing is Reached:2,200
Exhaust
Headers: Doug's
Primary: 1.875-in
Collector: 3-in
Pipes: 2.5-in
Mufflers: Flowmasters, three-chamber, bullet-type resonators, 2.5-in
Crossover: Fabbed 2.5-in "X"
Drivetrain
Transmission: Turbo 400, performance rebuild
Converter: Brand N/A, 11-in, 2,200-rpm stall
Shifter: Stock console
Rear: Pontiac, 10-bolt
Rear Gear Ratio: 2.93:1
Limited Slip: Pontiac Safe-T-Track
Chassis and Suspension
Brakes F/R: Stock 11-in drums
Wheels F/R: Pontiac, 8-Lug, 14x6
Tires F/R: Hercules 225/75R-14
Tire Pressure F/R: 35 psi
Suspension Front
Springs: Moog, stock repl. coils
Control Arms: Stock
Stabilizer Bar: Addco 1.125-in
Shocks: KYB Gas Adjust
Other features: Poly bushings
Suspension Rear
Springs: Moog, stock repl. coils
Control Arms: Stock, boxed by owner
Stabilizer Bar: Pontiac 0.875-in
Shocks: KYB Gas Adjust
Chassis Mods:None
The Rest
Interior Mods: AM/FM stereo, Grant steering wheel, cruise control keypad in the ashtray
Exterior Mods: None
Safety Mods: None
Paint: Repainted original colors, Mayfair Maize/Cameo Ivory
Launch Technique: Raise rpm to 1,000 and launch off footbrake
Best 1/8-mile ET/MPH Prior to Event: 9.41/74.49
Best 1/4-mile ET/MPH Prior to Event: 14.63/94.07


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