I ended up going with a Accel 1350 cfm throttle body since you can't really over throttle body a motor with EFI. Plus, the Accel throttle body was was only $338 on Amazon and was much thinner than a Holley Carb and even allowed my drop base aircleaner to fit. Plus, the sensor plugins will fit my LS harness as they are GM style IAC and TPS sensors.