Quick view FAST FAST XDi HEI Distributor for Chevrolet Small Block & Big Block - 303051 Compare $181.99 The FAST XDi Street HEI Distributor is packed with high-performance features, making it the perfect choice for any Small or Big Block Chevy engine. Featuring a powerful 6-amp ignition module that drives a custom-wound performance coil up to 50,000+... Add to Cart Add to Cart