jet built quadrajet 750 cfm,add’s 40 plus horsepower,ran it one time really added to top end,and was very smooth no tipical hessatation, payed $409.00 plus shipping and feul line an fitting #8 line will sell for $300.00 you can hear it run still on my car,changing classes can’t use call me @813-486-6028 or email hillracing1@verizon.net