Im looking for a carb for my 468 BBC with 13.1 compression, around 575 - 650 HP. Ive looked at Pro Systems, BG's, 4150's, 4500's. I dont know what to go with, its going to be a street car and im not wanting to spend more than $1000. What size would feed this motor? Ideally i would like to find a used one right now for as cheap as i could, but if i cant would a off the shelf Demon suffice? I can get a Mighty Sportsman from Jegs for $674.99. I know Pro Systems, and other custom carb builders that i dont know about would be better, but are they worth the extra 200 - 400 bucks?? Keep in mind this is just going to be a street cruiser with the occasional trip to the strip. All help is appreciated. Thanks, Eric.

 

An 850 holley mechanical carb is what i think would fit your bill if you are not going over 6500 RPM ir so.

 

750 to 850 pro series HP 4150. very streetable, very close tuning out the box.
less than 1k$

 

if you're running e-85 you will have to have the carb set up a lot different than a gas set up. e 85 will demand alot more fuel

quickfuel makes a e85 dedicated carb...look into those.

 

i just got my quickfuel e85 holley 750, very nice!!! well worth the extra cash.