By Larry Eidson
Heat is an engine’s worst enemy. I see racers driving their cars around before races start, and I ask myself why. When I ask them, people say it warms the fluids, it makes my car more consistent, it keeps my car from stumbling. I disagree completely. We drive our cars to the lanes »» more...

We replace rod bolts in steel rods at each rebuild (overhaul). It’s part of our standard rebuild. We also check the rod for size. It’s important to remember that during rebuild is the cheapest time to replace rod bolts. If you don’t replace them and have any problems with broken rods and rod bolts, »» more...

I recommend that the converter is at 400 to 500 above peak torque in a Powerglide. The shift point should be 400 to 500 above peak horsepower, which is more important for Top Sportsman and Quick 16 type racing. Also, if you’re using a manual, you should still shift 400 to 500 above peak horsepower. »» more...

A DragRaceResults.com member asked trade-offs between dome gained compression and flame travel. Honestly, I don’t see the dome and flame travel being a significant issue in the large cubic inch engines that people race today. Adequate compression is gained with relatively short domes. The most common mistake is increasing the height of the dome in »» more...

What we recommend with a wet sump is 10 to 12 inches of vacuum. For a dry sump, 18 to 20 inches of vacuum is a good number.