Mailbag: Tuning Tips for a Modified Chevy 350
Q: I have a 1973 Nova with a GM 350 crate engine. The engine has Trick Flow 23° cylinder heads, a Lunati cam, Edelbrock Performer intake, an Edelbrock Performer 600 cfm carb, and an MSD HEI distributor. The car also has a Turbo 350 transmission with a 2,500 stall lockup converter, Richmond 3.73 gears in
Ask Away! with Jeff Smith: Can I Put a Blower on a 383 with 10:1 Compression?
Can I put a blower on my balanced and blueprinted 383 c.i.d. stocker motor that has 10:1 compression? I just want it for looks, not to race. – G.H. … Jeff Smith: At first, my gut feeling was to answer no—it’s not a good idea. The only way this will really work is to set
Camshaft Secret Weapon: Choose Perfect Cam with New Summit Racing Cam Timing Calculator
It isn’t always obvious which camshaft we should choose for our engine build. Even when we fully understand the individual timing events and how each of them interact in a four-stroke engine’s piston and valve motion, the complexity of it all can bring confusion and uncertainty to the cam selection process. We just learned about
Mailbag: Troubleshooting 440 Engine Detonation at High Altitudes
Q: I own a 1983 Dodge Ramcharger with a 1970 440 engine. The engine is bored .040 inch over, has a forged crank, flat top pistons, and ‘452’ cast heads—the original ‘906’ cast heads were eaten up by unleaded fuel. It also has a Weiand Action Plus intake, a Holley 750 vacuum secondary carb, a
Dana 60 vs. GM 12-Bolt vs. Ford 9”: The Pros & Cons of Popular Rear End Assemblies
You’d think selecting a rear end for a project car would be easy. It’s not. Browse Summit Racing’s website or catalog and you’ll discover there are almost too many choices. For example, on the GM side, you’ll find 8.20-inch ring gear 10-bolts, 8.50-inch ring gear 10-bolts and 8.875-inch diameter ring gear 12-bolts. Popular FoMoCo choices
Ask Away! with Jeff Smith: Does 40% Leakdown Test Results Require New Piston Rings?
I just bought a used 5.3L LS engine out of the junkyard and after we got the engine back to the shop and mounted it on an engine stand, we decided to do a leakdown test. We checked all eight cylinders and the average was close to 40 percent. We removed the oil filler cap
Mailbag: Breathing Life Into a Wheelchair-Friendly 5.0L-Powered Ford E-150 Econoline
Q: Back in the day, my buddies and I used to rule the local dragstrips. The memories! Today, I’ve got gray hair and I’m mostly stuck in a wheelchair, but I still want my ride to have plenty of get-up-and-go. My wheelchair van is a 1992 Ford E-150 with a Mark III conversion. It has
Ask Away! with Jeff Smith: Diagnosing Ticking Noises and White Smoke in a Supercharged ’93 Ford Mustang GT
I’ve been looking online for help to figure out what is happening to my car and I thought your expertise may help. I have a supercharged ‘93 Mustang GT with a cam and aluminum heads. I noticed a slight ticking noise the other day when parked near another car. It’s not bad, but speeds up
Mailbag: Why Did Ford Change the Firing Order on the 5.0L 302 H.O. Engine?
Q: I’m building a Ford 302 engine, and I’m looking at camshafts. I’m curious—why did Ford change the firing order on the 5.0L (302) HO engine? A: This question gets a lot of mileage on internet forums, and there’s no shortage of speculation on the subject. According to Ford Motor Co. engineers, the 5.0L H.O.
Video: What to Look for When Selecting a New Clutch for Your Vehicle
There’s much to consider when replacing or upgrading a clutch in your car or truck. Today’s video is going to clarify anything you might be confused about, and help you identify everything you’ll need to know for selecting a new clutch for your vehicle that you’ll be happy with. The things you’ll need to consider




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