For the 2013 running of the AMSOIL Engine Masters Challenge, Popular Hot Rodding magazine is pleased to announce that VP Racing Fuels will be the official fuel with their street-legal 100-octane VP-100. With a compression limit of 11.5:1 and an rpm ceiling of 7,000 rpm, the competing engines in the 2013 AMSOIL Engine Masters Challenge can rely on VP Racing Fuels’ VP-100 for safe, consistent, powerful results. VP-100 (aka StreetBlaze 100) is a 100-octane unleaded gasoline that is specifically engineered for high-performance muscle cars; it is a CARB-legal fuel that’s environmentally friendly and street-legal in most areas. It contains no metal compounds and won’t harm catalytic converters or oxygen sensors. In normally aspirated engines, VP-100 allows for higher compression and more advanced timing; VP-100 is formulated for use in cast-iron head engines with compression ratios up to 12:1, and in aluminum-headed engines up to 14:1. Oxygenated with ethanol, VP-100 significantly outperforms premium grade unleaded pump gas. To see how VP Racing Fuels can help your engine, contact VP at 812-878-2025, or via at tech@vpracingfuels.com, or go to www.VPRacingFuels.com and click on “Ask Our Tech Experts.”