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BG carbs are wet flowed, so a 750 speed demon will actually flow about 825 cfm, an 850 demon will flow almost 1000 cfm. most all othe carbs are dry flowed. Proform are decent but made in china and not real consistant. I have run carter,edelbrock,holley,demons and I can say the demon carbs are the best carbs made for an out of the box carb, I have a 700.00 custom carb sitting on my shelf in my garage that doesent run as good as my out of the box demon.
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67 vert, 408 stroker 205cc TW heads, CI cust hyd roller,Dougs 1 3/4 try y's, global west neg roll,lentech aod...etc etc etc
ya i have always wanted a bg but if i was going to get one....my usual motto is "go big or go home". needless to say those $1k carbs are a bit much lol
tho those road demons are not bad at all for the price cheapest i found was about $304 for a jr.
__________________ http://www.cardomain.com/ride/2590051
289 C Code
Rebuilt: Engine, Tranny, Suspension (Grab-A-Track)
Upgrades: Weiand Action Plus Intake, Holley Street Avenger 570CFM, Flamethrower Coil, Pertronix Distributor, Mallory VI 6AL Ignition Box, Hooker Comp Headers...and of course more to come
....oh and a 2001 chevy pos
Last edited by longlive289s; 03-22-2009 at 03:06 AM.
i had considered a 625 road demon very seriously, but i want adjustable air bleeds on my next carb and holley doesn't even make one until you get into the 750 main body.
If you go with the HP series, you can have adjustable air bleeds starting at 390.
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Mark
RCR GT40 Mk1
FFR Daytona Coupe (sold, sniff)
1968 GT500KR (clone)
1966 GT350 (clone)
1967 Mustang convertible (unmolested so far)
Hey, my whole life is a fake!
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