For more mild street applications, we also have our Ready to Run Street distributor. These fit "B" (361/383/400) engines and feature a simple 2 wire hookup, and no external ignition box is required. A completely maintenance free magnetic pickup accurately triggers the ignition system. The increased output of the internal ignition system included in these far outperforms a stock ignition and will help to smooth out the engines idle, make starting easier, and provide a stable spark, even at higher engine RPM's. These also feature a performance advance curve setup at the factory, and a vacuum advance is included to help with fuel economy. Just like the PRO BILLET versions, these use "Spark Plug" style locking terminals on the cap to ensure a positive connection. An excellent choice for street use. This distributor can also be used with a "female" (factory type) cap, see our replacement caps listed separately. Current stock of these distributors use the caps listed as having an "IN LINE" locating tab.