Ls3 with a holley 750 HP on the street

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LsxBuickRegal1982

Greasemonkey
Nov 9, 2018
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I have a Chevy performance CT525 crate engine with a holley 750Hp double pumper and a howards cam for a weekend street driven ls swap 82 regal and I was wondering would this carb be too much on the street I am running a GM single plane intake and a Howards cam.
 

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TURNA

Rocket Powered Basset Hound
Jul 24, 2009
10,941
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Socialist NY
What trans?

Chevy recommends a 650 for that engine but tested it with a 750.

So the Dyno numbers on the sheet used a 750 Holley
 

TURNA

Rocket Powered Basset Hound
Jul 24, 2009
10,941
19,990
113
Socialist NY
A basic rule is vacuum secondary's with an auto

Mechanical with a manual

But that said I usually use a mechanical secondary carb
 
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bracketchev1221

Royal Smart Person
Jan 18, 2018
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You'll be fine with the 750. It has enough gear and converter to help get it going.
 
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vanrah

G-Body Guru
Apr 16, 2013
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Greetings LSx82 & all; I really like the cam ya picked & the intake. With that carb you may find ya got a little flat spot going full on from a slow roll. But like Bracket Chevy & Turna said you'll be fine for an all out on the converter start. Good Luck & if ya got carb questions just ask us guys, Ole' Bopb
 
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motorheadmike

Geezer
Nov 18, 2009
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Injectedcutty

G body LS mafia
Nov 24, 2014
6,057
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Louisville, KY
Carbed LS isn't bad, but so much more efficiency, power, tunability is on the table with EFI. Not to mention, some EFI setups look wicked :sneaky:;)!!!
20181125_124621.jpg
 
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