Q&A

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re recommending a drivetrain combo to breathe more energy and efficiency into a tired old 350 small block V8 engine. Q: I have a 1972 Impala with a tired 350 engine, Turbo Hydra-Matic

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

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re troubleshooting ignition problems on an uncooperative small block Chevy swapped into a Monte Carlo. Q: I own a 1984 Monte Carlo SS with a stock 350 out of a 1974 4×4 pickup

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re troubleshooting a backfiring problem on a 427 big block Chevy. Q: I have a 1974 Olds Omega with a 427 cubic-inch big block Chevy. The engine has an Erson cam (292-degree duration,

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

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re troubleshooting a Pontiac Trans Am Tuned Port Injection engine that’s experiencing both idle and off-idle stumbling. Q: I have a 1988 Pontiac Trans Am GTA with the 350 engine. I installed an

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

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re troubleshooting an engine that’s running too hot. Q: I have a 1955 Chevy two-door sedan. I have switched engines in the car a number of times, and it currently has a 327

  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.

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re discussing two-chamber vs. three-chamber mufflers, and which produces the loudest exhaust notes. Q: I have a 1989 Ford Mustang GT. The car has some upgrades like underdrive pulleys, ignition and coil, and