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the fuel tank sending unit in a 1960s era gm car

Ask Away! with Jeff Smith: Finding & Fixing a Strong Gas Odor from a 1967 Chevy El Camino

I normally park my 1967 El Camino in my separate shop with all the other car parts and stuff but recently had the opportunity to park it in my attached […]
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Ask Away! with Jeff Smith: Troubleshooting a Noisy Starter Motor in a Chevy Big Block

I have a big block Chevy in my 1965 Bel Air and it runs great but has a very noisy starter motor. I am using a late model, permanent magnet […]
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Ask Away! with Jeff Smith: Can I Run Solid Roller Lifters on a Hydraulic Roller Cam?

I have a small-block 350 street/strip engine that I continue to play around with. In my last session at the track, it seems like the engine doesn’t pull as hard […]
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The Muscle is Back: A New Line of Summit Racing Muscle Car Flat Tappet Small Block Chevy Camshafts

There was a time almost six decades ago when screaming, carbureted small-block Chevy engines with big carburetors and 11:1 compression rolled off the assembly line and roamed the earth as […]
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Ask Away! with Jeff Smith: Understanding Carburetor Power Valve Channel Restrictors

I’ve read your article on carb tuning about 5 times. I have a 650 cfm SS-AN annular discharge Quick Fuel carburetor with the changeable jets behind the power valve. Are […]
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close up shot of gear teeth on a flexplate

Ask Away! with Jeff Smith: Troubleshooting a Chevy 454 with a Bad Vibration at 2,100 RPM

I recently had a 1970s 454 Chevy big block rebuilt and assembled by my local machine shop for my 1971 Monte Carlo. The engine was assembled with new pistons, rings, […]
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chevy nova ss muscle car

Ask Away! with Jeff Smith: Getting an Aftermarket Tach to Work in an LS-Swapped 1969 Chevy Nova

I have completed a 5.3L LS truck engine swap into my ’69 Nova with a TH350 trans behind it for now. We decided to use the factory ECU and an […]
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summit racing vortec cylinder heads on a white background

Ask Away! with Jeff Smith: Picking a Cam & Cylinder Heads for a Mild Street Small Block Chevy

I am building a mild street engine and researching my existing heads for air flow. The casting number on my cylinder heads reads 10147898: It appears these are 1995 through 1998 350ci […]
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man measuring a torque converter diameter

Ask Away! with Jeff Smith: The Best Flexplate for Mating a 1994 5.7L LT1 to a TH400

I have a 5.7 LT1 from a ‘94 Trans Am I want to mate it to a ‘79 TH400 transmission. What flexplate do I need? This has been a very […]
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a chevy 383 stroker v8 engine under the hood of a muscle car

Ask Away! with Jeff Smith: Solving a Shaking, Hiccupping 383 Small Block Chevy in a 1971 Camaro

I have a problem that hopefully you can help. We just finished dropping my brand new 383 small block Chevy into my ’71 Camaro. I had a professional shop build […]
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