Need help picking injectors that will have have flow data for calibration. Car is a 69 Camaro that will have around 650 crank hp. It's a 418 cube Lsx engine with efi victor Jr intake and edelbrock fuel rails. Holley 4 blade throttle body. Will have a speed density tune with a factory gm 411 ecm. Tanks Inc Intank 400 pump with return style fast regulator mounted on fuel rail. This will be my first time tuning with hp tuners pro. Thanks for any help picking a decent injector size and brand that will make an easier setup! Any other info you can give that will help me get started is appreciated. Thanks, Frank