ThermoQuad High-Performance Carburetors 1971 St. Louis Missouri T-shirt

Step back in time with this authentic piece of automotive history! The ThermoQuad t-shirt pays tribute to one of the most innovative high-performance carburetors of the muscle car era. Launched in 1971 by Carter in St. Louis, the ThermoQuad revolutionized carburetor design with its groundbreaking spread-bore configuration and lightweight thermoplastic fuel bowl construction.Rising to prominence during the peak of the muscle car era, the ThermoQuad earned a devoted following among street racers and performance enthusiasts before production ended in 1981. Industry shifts toward fuel injection and changing emissions standards led to its demise, though dedicated gearheads still seek out original ThermoQuads for their remarkable flow characteristics and unique engineering.This premium t-shirt features a distressed, vintage-style reproduction on a high-quality Gildan 5000 blank. Crafted from 5.3 oz, 100% preshrunk cotton, this classic unisex fit shirt offers both comfort and durability. The