OK, I need a recommendation for a carb. This BG Speed Demon piece of junk is coming off. Something really wrong with it and I am tired of fooling with it. Can NOT get it to idle consistently on my car at all. Very, very rich no matter what I do. Also it appears that the base is not machined correcly because the transferslots are not uniform... Anyway, I am done with it.....

Here is my combo as it is now:
71 440
• Stock rods and crank
• TRW Forged Flattops; approx. 10:1 Static Compression ratio
• Out of the box Edelbrock RPM heads (84cc)
• Stock style rocker gear
• Comp XE285HL Cam, comp lifters, Stock Edelbrock Head Springs
• RPM Intake
• 750 Speed Demon Carb
• MP Electronic Ignition
• Doug’s 2” Full Length Headers
• 3” Magnaflow bullet mufflers out the side like a AAR currently, coming a 2 ½ “ X-pipe exhaust system. Current system way too loud.
• 833 4-speed
• 8 ¾” rear 3.91 sure grip
• 275/60-15 rear tires (28” tall)

Then only thing I may change would be the RPM intake to a SD to gain some hood clearance and depending on street manners once I get this thing to idle, I may go to just a little smaller cam something in the 230ish @ .050 range.

I am looking for a carb that will IDLE and be really close OOTB that will need only minor tweaking to make a good street carb. This is not a daily driver so choke is not important. Looks like most are running 850's on similar builds..... What are my choices. Proform, AED, Bigs, Holley HP....... I did notice that Summit Racing has the AED 850HO's on sale for $499. Is this a good carb? I sent BIGS a note and Jessee repied about a Stage 7 750 that would flow 855....

Anyway, any help would be appreciated.


'69 Barracuda 340 4-speed
'73 Cuda PROJECT