MSD 8366 Late Model HEI V8 Ext Coil Distributor

The MSD 8366 Pro-Billet EFI Distributor shows a mix of positive and negative experiences from customers, emphasizing a divide in the sentiment based on performance versus durability. Generally, users report that the installation of the distributor is straightforward and serves as an effective upgrade, particularly when replacing an OEM unit. One user specifically noted the significant enhancement in performance on their 350 TBI Pickup after installing the MSD distributor, highlighting improvements in power and fuel efficiency, with reports of gaining an extra three miles per gallon. However, the feedback becomes less favorable when it comes to the ignition module that comes with the distributor. Several customers referenced issues with the foreign ignition module failing prematurely, leading to frustration due to the necessity of rewiring for compatibility with a GM replacement module. This not only indicates a potential design flaw but also diminishes user confidence in the distributor's long-term reliability. The soldered connections instead of plugs have been a particular point of contention, as they complicate replacements when needed. While many praised the performance with the MSD ignition module, others expressed disappointment with the warranty and support regarding faulty parts. In summary, the MSD 8366 Pro-Billet EFI Distributor appears to be a good-quality product that enhances vehicle performance significantly but is marred by concerns over the included ignition module and the design choices related to its installation. **