Ls3 with a holley 750 HP on the street

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LsxBuickRegal1982

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

TURNA

Rocket Powered Basset Hound
Jul 24, 2009
10,993
113
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
 
LsxBuickRegal1982

LsxBuickRegal1982

Greasemonkey
Nov 9, 2018
112
28
Th400 with a 3000 stall and a 3.73 posi rear end with 275/60/R15 drag radial
 
TURNA

TURNA

Rocket Powered Basset Hound
Jul 24, 2009
10,993
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

G-Body Guru
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

vanrah

G-Body Guru
Apr 16, 2013
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Near Afton, Wisconsin
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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LsxBuickRegal1982

LsxBuickRegal1982

Greasemonkey
Nov 9, 2018
112
28
Thank you for all the insight I hope I can get this thing tuned cause I prefer a carb over efi any day
 
motorheadmike

motorheadmike

Geezer
Nov 18, 2009
5,424
113
Ottawa, Ontario Canada
Injectedcutty

Injectedcutty

Geezer
Supporting Member
Nov 24, 2014
5,288
113
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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