The reasons are that if you follow the trends over the last 10 years you see how the 14mm and the 13.9 mm evolved. Today in many classes we have overdrive limitation imposed and everybody runs the maximum allowed overdrive. You can get closer to the maximum overdrive with the fine tooth of a 8mm drive so many racers are going back to the 8mm drive for this reason. We run a 8mm overdrive on our Top Alcohol dragster and have never had any problems even though we run the maximum overdrive and make the gear changes at over 10,000 rpm's. Another reason for using the 8mm is there is a greater selection of belts lengths available.
Studs have hex top to allow easy installation.
See our fuel injection system hardware and components and our fuel flow bench services. Engine must have on board starter as this is not compatible with remote starters. For other tools see tools section . A popular alternative to a sheet metal manifold is making an adapter to attach to a Edelbrock Victor Ram manifold to make a blower manifold. Although not a perfect blower manifold like a custom built sheetmetal manifold would be this is a very good alternative to the normal low rise production cast blower manifold available that have the normal design flaws associated with low rise manifolds.