help me tune my demon

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Feb 16, 2006 | 04:51 PM

z28z34man

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Joined: Jul 2004

Posts: 595

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From: IA

Car: 1984 z28 camaro / 2019 accord sport

Engine: 350

Transmission: 700r4

Axle/Gears: 3.42

help me tune my demon

i need to know what size squirter i should get, jets, and pump cam for my demon 750 ts mods in sig

it runs a lot better after i changed the 76 primary to a 74 and the 83 secendey to a 81. It still needs a lot more tuning

Feb 17, 2006 | 07:38 PM

Badass355ciz28

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iTrader: (17)

Joined: Nov 2005

Posts: 1,104

Likes: 2

From: Leicester,Massachusetts

Car: 1983 CHEVROLET CAMARO Z28

Engine: Forged 355 with a GT45 turbo

Transmission: TKO 600

Axle/Gears: built 4th gen rear with 3.27s

demon carb

they should come with 30 or 31 squirters i also have a 750 speed demon on my 355 sbc with 72 primary jets and 78 secondary jets with a 6.5 powervalve

Feb 18, 2006 | 10:34 AM

z28z34man

Thread Starter

Senior Member

Joined: Jul 2004

Posts: 595

Likes: 0

From: IA

Car: 1984 z28 camaro / 2019 accord sport

Engine: 350

Transmission: 700r4

Axle/Gears: 3.42

stock squirter size is a 31
stock pump cam is a # 330 pink if that helps

Last edited by z28z34man; Feb 18, 2006 at 10:38 AM.

Feb 19, 2006 | 02:57 PM

88IROC350TPI

Supreme Member

Joined: May 2001

Posts: 2,009

Likes: 5

From: Pitman, NJ

Car: '89 IROC-Z

Engine: Canfield 195 headed 358ci

Transmission: TH350, Art Carr 9.5"

Axle/Gears: 3.92 Dana 44

I have a very similar combo to yours and my 750 Demon is pretty close right out of the box. I have never made it stumble bog or backfire. What kind of problems are you having with it?