750 carb good for 500hp
#11
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A 750DP on a 330hp-400hp 5.7 with a dual plane intake (performer rpm) is easy to tune and will make max power to boot.
Just as an example...........
Just as an example...........
#12
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Missed this.
Yess, it is.
If this is used on a 500hp or higher hp BBC engine I'd strongly recommend a 1" open spacer. I'd demand the 1" open spacer if using a small (for the application) carb like the mentioned 750 on a 500hp BBC.
Yess, it is.
If this is used on a 500hp or higher hp BBC engine I'd strongly recommend a 1" open spacer. I'd demand the 1" open spacer if using a small (for the application) carb like the mentioned 750 on a 500hp BBC.
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It's a .030 over 454 290 big oval heads with big valve bowls worked runners worked emi thunder exhaust Bob M roller cam rpm performer intake 9.2 to 1 CR
Last edited by Artate78; 10-20-2011 at 09:33 PM.
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Let me know if you'd be interested, otherwise it will be sitting on my shelf for some time, or maybe I'll throw it on ebay...I'm in no hurry to get rid of it but if someone else needs it, hey what the heck.
Items Ordered Price
1 of: Holley 0-80443 850 CFM Marine Four Barrel Mechanical Secondary Automatic Electric Choke Carburetor
Condition: New
Sold by: Amazon.com LLC
$591.41
Order Placed: July 23, 2011
Order Total: $591.41
Item(s) Subtotal: $591.41
Shipping & Handling: $0.00
-----
Total Before Tax: $591.41
Sales Tax: $0.00
-----
Total for This Shipment: $591.41
Last edited by brivander; 10-22-2011 at 06:56 AM.
#16
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Edelbrock carbs are vacuum secondary. Never heard of a mechanical secondary EDDY carb.
I know of the spreadbore 750 Holley carbs...never heard of a 800 spreadbore. BTW: I have not liked the automotive nor marine spreadbore Holley carbs. Don't seem to tune in as well as their squarebore carbs and require more labor.
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I put a new Edelbrock marine 750 on my new 468bbc. It was running lean on the dyno with the stock jets, we had to put in the biggest jets Edelbrock makes to get it to run safe and my engine only made 407hp. Go with a Holley carb much better tune ability.
#19
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Please double check your carbs.
Edelbrock carbs are vacuum secondary. Never heard of a mechanical secondary EDDY carb.
I know of the spreadbore 750 Holley carbs...never heard of a 800 spreadbore. BTW: I have not liked the automotive nor marine spreadbore Holley carbs. Don't seem to tune in as well as their squarebore carbs and require more labor.
Edelbrock carbs are vacuum secondary. Never heard of a mechanical secondary EDDY carb.
I know of the spreadbore 750 Holley carbs...never heard of a 800 spreadbore. BTW: I have not liked the automotive nor marine spreadbore Holley carbs. Don't seem to tune in as well as their squarebore carbs and require more labor.
Both the Edelbrock 1409 600cfm and the 1410 750cfm are square bore carbs.