Ask Away! with Jeff Smith: Clean or Replace Corroded Fuse Boxes to Cure Random Non-Battery-Related Power Loss
I just bought a ’68 Olds Cutlass from a local guy. It’s in really great shape and I got a good deal because the previous owner was fed up with an electrical problem. He was straight with me – he said that sometimes you’d be driving down the road and the whole car would just
Ask Away! with Jeff Smith: Will My New EFI System Work With My Setup?
I just bought the EZ-EFI and I’m still waiting for delivery. I have a 455 Pontiac. For the last couple of days, I’ve been reading up on it (should’ve done that first) and it doesn’t sound like it’s going to work for me. The only thing the salesman said is that it will work is
Ask Away! with Jeff Smith: Here’s Why More Engine Boost Doesn’t Always Mean More Power
I was watching a dyno test video the other day with a couple of cam swaps on a supercharged LS3. On the first test, a slightly bigger cam showed more power with the same boost. On the last cam—and the biggest one—the power went up again but the boost went down. Shouldn’t the power go
Ask Away! with Jeff Smith: Exploring Parasitic Power Loss in an Autocross Car
I have a small-block, four-speed ’71 Camaro that I race in autocross. How much horsepower do the following items use on a small-block at 6,000 rpm? Even a guesstimate would be great. Thanks. Flex fan – 18-inch diameter Alternator Water pump Power steering pump Exhaust 2 1/2-inch exhaust tubing with Flowmasters TKO 600 transmission G.L. I have
Ask Away! with Jeff Smith: Using Master Cylinder Math to Solve Brake Pedal Woes
I have a ’64 El Camino that has been converted to front discs using 1970 Chevelle parts. I was told that I should change the master cylinder as well, so I bought a dual reservoir power brake master thinking that would be better, even though my car does not have the power brake booster.
Ask Away! with Jeff Smith: Why You Should Locate Fuel Pressure Regulators Near the Engine
I am making plans for an LS-swapped Chevelle with all kinds of cool parts, so I’m building the car in my head. I’ve seen lots of people use that Corvette factory fuel pressure regulator and fuel filter in their cars and I got to wondering why I should place the regulator up front near
Ask Away! with Jeff Smith: How to Identify Gasket Leaks and Fix Them
I have a 383 c.i. small-block Chevy that I recently rebuilt and installed in my ’72 El Camino. Unfortunately, it appears that the rear main seal is leaking. I’m pretty sure I installed the seal the right way, but it’s obvious from how bad the leak is that it’s going to have to be replaced.
Ask Away! with Jeff Smith: Choosing the Largest Camshaft Isn’t Always a Good Idea
I have a 496 Chevy and I want to go with a tunnel ram. What is the largest cam I can go with? It is going in a rat rod gasser. R.F. Jeff Smith: This is like asking “How high is up?” Generally, we like to answer questions that are a bit more focused, but
Ask Away! with Jeff Smith: Replacing an Antiquated Distributor on a Small Block
I have a 302 Ford in my street rod and have been using the Mallory Unilite distributor for years. Lately it’s been acting up and I can’t buy parts for this system anymore. What would be a good replacement for my small block? K.S. Jeff Smith: The answer is a little bit like the question
Ask Away! with Jeff Smith: Optimizing Gear Ratio for Overdrive at Cruising Speeds
I have a ’72 Chevelle and I am planning for either a 700R4 or maybe a 4L60E. The car right now has a mild big-block 454 and I’m looking to put together a nice running street and highway car. I don’t drag race this car but I do want to be able to cruise down




Stay Connected