Jim Smart
February 4, 2011

Dyno Run No. 5
Edelbrock Performer RPM
Manifold and Carburetor Swap
TimeRPMPowerTorque
N/A3,400122.6189.4
N/A3,500124.8187.3
N/A3,600126.8184.9
N/A3,700128.8182.9
N/A3,800129.0178.3
N/A3,900132.7178.7
N/A4,000134.1176.1
N/A4,100135.3173.4
N/A4,200134.6168.3
N/A4,300135.2165.2
N/A4,400134.8160.9
N/A4,500132.6154.7
N/A4,600131.0149.6

Dyno Run No. 6
Timing checked and adjusted
to 15 degrees BTDC initial
TimeRPMPowerTorque
N/A3,400124.1191.7
N/A3,500127.1190.7
N/A3,600129.6189.1
N/A3,700132.8188.5
N/A3,800134.8186.3
N/A3,900136.7184.1
N/A4,000137.6180.7
N/A4,100138.5177.5
N/A4,200138.6173.3
N/A4,300138.5169.2
N/A4,400138.0164.7
N/A4,500136.6159.4
N/A4,600131.4153.9

Dyno Run No. 7
Jet change from 0.098 inch
to 0.095 inch (smaller jets
to lean mixture)
TimeRPMPowerTorque
N/A3,400125.6194.0
N/A3,500127.2190.9
N/A3,600130.5190.4
N/A3,700133.0188.9
N/A3,800134.5186.0
N/A3,900136.5183.9
N/A4,000137.4180.4
N/A4,100137.9176.7
N/A4,200138.8173.6
N/A4,300137.3167.7
N/A4,400138.4165.2
N/A4,500136.9159.8
N/A4,600135.2154.3

Dyno Run No. 8
Retard initial ignition timing by
4 degrees to 11 degrees BTDC
TimeRPMPowerTorque
N/A3,400130.3201.3
N/A3,500132.9199.4
N/A3,600135.8198.1
N/A3,700138.6196.7
N/A3,800139.8193.2
N/A3,900142.0191.2
N/A4,000142.8187.5
N/A4,100144.4185.0
N/A4,200144.5180.7
N/A4,300144.7176.8
N/A4,400144.7172.8
N/A4,500143.0166.9
N/A4,600142.1162.2

Dyno Specs
 PowerTorque Air/Fuel
Run No. 5: Edelbrock Performer
RPM Manifold and Carb Swap
Maximum135.3 (+4.0)189.4 (-7.3)12.5
Minimum122.6 (-1.8)135.8 (-6.2)12.2
Average130.3 (+1.7)168.5 (-1.9)12.3
Run No. 6: Timing Adjustment to 15 degrees BTDC
Maximum138.6 (+3.3)191.7 (+2.3)12.0
Minimum124.1 (+1.5)142.4 (+6.6)11.6
Average133.9 (+3.6)173.2 (+4.7)11.8
Run No. 7: Jet change from 0.098 inch to 0.095 inch
Maximum138.8 (+0.2)194.0 (+2.3)12.2
Minimum125.6 (+1.5)141.9 (-0.5)11.9
Average134.1 (+0.2)173.4 (+0.2)12.1
Run No. 8: Retard initial timing
4 degrees to 11 degrees BTDC
Maximum144.7 (+5.9)201.3 (+7.3)12.3
Minimum130.3 (+4.7)150.1 (+8.2)12.0
Average140.1 (+6.0)181.1 (+7.7)12.1

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