an efi car will NOT pass emissions with a carb. becuase you tampered with and removed half the emissions equip in the conversion.

reguardless of how it runs on the sniffer.

drag cars only have to tune for WOT. they use carbs because of simplicity and WEIGHT. efi systems have lots of pieces, miles of wire, require a big burly electrical system and usually an alternator to keep them happy. if voltage drops ur carb still works. they dont give a shit on part throttle drivability, emissions, reliability or fuel consumption.

also nhra makes the rules, and they do so for reasons you cant even comprehend. you think mandating carbs to keep the sponsors happy is out of the question? it is a business after all.

we race trophy trucks out here, and guess what they use efi. its all about what your after.

carbs on drag cars are by no means cheap, a dominator thats been split and spread isnt something you get for 300 bucks from summit. however nostalgia has alot to do with the rules in drag racing... why do top fuelers have to run roots blowers? because the cars have to look a certain way to keep the crowds comin back. why do they make nascar run carbs? it surely isnt beneficial for them to do so. but its what they feel people want to see.

heres a nice little write up for anyone that cares.

http://www.stockcarracing.com/techar...uel_injection/