4.2K views · 224 reactions | ON THE DYNO: Pontiac 455 H.O. engine with cast iron #197 rd. port heads. Low compression and very mild custom grind hyd roller cam with a F.A.S.T. EZ 2.0 EFI system. Very nice and streetable combo for this customer's 1972 Formula Firebird. Made over 480 HP and 530 ft/lbs torque. (Engine pics in comments) | Butler Performance Pontiac | Facebook
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4.2K views · 224 reactions | ON THE DYNO: Pontiac 455 H.O. engine wi…
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2K views · 149 reactions | Last week's Motor Monday post featured Paul McClorey's Butler Pontiac 505 Pro-Touring/Road Race Engine. Here it is on the dyno making over 770 HP and 670 ft.lbs. of Torque on PUMP GAS! | Butler Performance Pontiac | Facebook
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2K views · 149 reactions | Last week's Motor Monday post feature…
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Butler Performance Rebuilt This 455 Super Duty Pontiac
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Last week we saw this strong Butler 467ci engine going in a 1968 Firebird! This week we want you to see it on the Dyno! | Butler Performance Pontiac
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Last week we saw this strong Butler 467ci engine going in a 1968 Fireb…
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ON THE DYNO: 505 cu.in. Pontiac PULL TRUCK ENGINE. This custom built Butler Performance Pontiac engine is going into a 1957 GMC 4-wheel drive Pro-stock pull truck. It's running factory RAIV cast iron cylinders heads (per class rules). Made 855 HP (@7400 RPM) and 685 ft/lbs torque!! www.ButlerPerformance.com | Butler Performance Pontiac
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ON THE DYNO: 505 cu.in. Pontiac PULL TRUCK ENGINE. This custo…
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This one’s a crowd pleaser! Pontiac Firebird with a Butler 505 engine! Video Credit: kevin keller | Butler Performance Pontiac
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