Q&A

(Image/Mecum)
Q&A

Mailbag: Basic Upgrades for a 1980s-Era El Camino SS

Q: I have a 1986 Chevy El Camino SS with a Chevy 350, a single exhaust, and power steering and brakes. I’ve had it for 10 years and it has […]

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Q&A

Mailbag: Header Adapters for a 350 Chevy-Equipped First-Gen Camaro?

Q: My 1969 Camaro has a 350 small block Chevy engine, Turbo 400 transmission, and a 12-bolt rear end. I’ve purchased many parts over the years, including Dart Sportsman II cylinder […]

Setting idle mixture appears easy but the reality is that achieving an ideal mixture will require patience and attention to detail to truly get it correct.
Q&A

Ask Away! with Jeff Smith: How Camshafts Relate to Exhaust Smell

I have a ’68 383 Road Runner, I bought it as a non-running car and it had a considerable cam in it when I got it—I think it is the […]

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Q&A

Mailbag: LT1 Corvette Intake Upgrade for a GM L83 LT Engine

Q: I have a Gen. Five, LT-series 5.3L L83 engine that’s going into my 1975 Chevy Monza. The factory intake manifold is too tall to clear the stock hood, so […]

The disassembled fuel pressure regulator illustrates its simplicity. The spring can be adjusted externally with a screw and lock nut. Note the small nipple connection on the dome on both the small red version and the larger black Aeromotive regulator. (Image/Jeff Smith)
Q&A

Ask Away! with Jeff Smith: How to Install a Bypass Fuel Pressure Regulator on an EFI System

I’m building an LS engine to put into an early Chevy pickup and I’ve got a fuel delivery system question. I’m running one of those new Holley Sniper aluminum fabricated […]

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Q&A

Mailbag: What Lifters Should I Use For My 360 Dodge Magnum Cam Swap?

Q: I’m building a 360 Dodge Magnum engine, and want to install a performance hydraulic roller camshaft. I can’t find the replacement OEM lifter alignment bars that the stock roller […]

If this API ‘donut’ appears on a bottle of oil, inspect the label as this means the oil is a current spec API legal oil with an SL, SM, or SN rating. This means it contains roughly an 800 ppm concentration of ZDDP and is probably not a good choice for a flat tappet camshaft engine unless the valvetrain is completely stock—and even then this might be taking chances with lifter/cam durability. (Image/Jeff Smith)
Q&A

Ask Away! with Jeff Smith: Can I Mix Zinc Additive with Off-the-Shelf Motor Oil to Save Money?

Why can’t I just add a bottle of zinc additive to my oil and then just use regular off-the-shelf oil? Won’t that work just as well as those more expensive […]

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Q&A

Mailbag: Parts Recipe for Turning a ’94 Camaro Z28 Into a 12-Sec Car

Q: I want my 1994 Camaro Z28 to run 12-12.50 quarter miles. Can you put together a parts list that will get me in the ballpark? Thanks for the help! […]

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Q&A

Ask Away! with Jeff Smith: Transmission Recommendations for a ’64 Chevelle

I have a 1964 Chevelle convertible. Several years ago I put a 700-R4 in it, which has never shifted correctly. It slips, doesn’t work right with the carburetor, etc. I […]

Mailbag: Can I Overbore a 267 to Power My ’65 Chevy Truck?
Q&A

Mailbag: Can I Overbore a 267 to Power My ’65 Chevy Truck?

Q: My father gave me a 267 Chevy small block that came from a Malibu. I’d like to drop it into my 1965 Chevy truck but I don’t think it’s […]