I HAD a edelbrock AFB 800 cfm carb that never ran good no matter how it was jetted. Got a NOS thermoquad and sent it to Demonsizzler....WOW ! My car never ran so smooth..never loads up ..it just rips ! I gained 4mpg at the same time. I here that the AVS 800 edelbrock IS a better carb than the AFB but I would get a thermoquad for a street strip type Mopar if you could.