Dissapointing performance

Is this drag race only? If more street than race i'd say dual plane. Race, single plane. Exhaust, 2.5-3" with x or h pipe to help scavenge and balance out the exhaust. Need more stall on converter. I have personally seen a second or two difference in et's at the track when a matched converter was installed in lieu of a factory tight one which did not compliment the rest of the drivetrain combo