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383 SBC Carb ?

Posted: Mon Sep 29, 2014 11:54 am
by Patrick
Just wondering how big a carb [cfm] you all are running on your 383 chey engines. We have a 750 Holley vac secondary on ours. 14 foot Panther, 2.68 Rotator and Whirlwind 78 inch 3 blade, 13 inch wide. The motor makes about 425 h.p. Thanks Pat

Re: 383 SBC Carb ?

Posted: Mon Sep 29, 2014 12:23 pm
by nomad41
I'm running a SBC stroker with a 770 Holley with a 2.68 box with an 82" R set past the 3 mark tuning 5400

Re: 383 SBC Carb ?

Posted: Mon Sep 29, 2014 4:17 pm
by makinwaves
holley 750 DP on a 383 w/2:38box and 80" 3blade. runs great.

Re: 383 SBC Carb ?

Posted: Mon Sep 29, 2014 5:27 pm
by skinny99
Had a 383 making in low 400's for power. 2.68 box and 3 (R) blades set at almost 3 mark turning 5600. Had a really good working 600 cfm holley that was tuned and jetted properly. Installed a 750cfm Holley and picked up 200 RPM's at WOT. Calculator says it only takes like 570cfm but the built in prop dyno told a different story.

Re: 383 SBC Carb ?

Posted: Mon Sep 29, 2014 6:01 pm
by :)
Running 750 Holley on mine. 450hp

Re: 383 SBC Carb ?

Posted: Mon Sep 29, 2014 11:05 pm
by bonecollector
750 AED on all mine

Re: 383 SBC Carb ?

Posted: Tue Sep 30, 2014 11:11 am
by BCConviber
I had a 750 double pumper on mine.. When I rebuilt it the last time and pumped up the power
a little bit I couldn't jet it up enough to darken the plugs. I went to an 850 AED and jetted it
down a little.

Re: 383 SBC Carb ?

Posted: Mon Oct 06, 2014 10:48 pm
by aggiejim
bcc thats a gas hog I bet

Re: 383 SBC Carb ?

Posted: Tue Oct 07, 2014 10:32 am
by Hammer00
Ive put 3 750 quickfuels on airboats 383, 383, 400ci and all 3 worked perfectly right out of the box. No adjusting other than the rear float level. Get the SS.

Re: 383 SBC Carb ?

Posted: Tue Oct 14, 2014 12:00 pm
by HaulinGrass
I run a 750 DP Quick Fuel. on my 383 about 540 HP turning a 79 ex 2.7 ballistic box, had it up to 84.6 mph @ 6500 RPMs this Sunday :shock: still tweaking it tho