- 4-barrel spread-bore configuration balances cruise and power
- Vacuum secondaries automatically engage for smooth acceleration
- Built to original factory specs for clean bolt-on installation
- Heavy-duty construction suitable for classic trucks and suvs
- Fits 1966-1973 chevrolet and gmc v8 engines
Designed as a direct-fit 4-barrel spread-bore carburettor for classic American V8 trucks and utility vehicles, this unit features a vacuum secondary system to optimize fuel economy during cruising while delivering power on demand. Its durable construction ensures dependable cold starting and towing capability.