What carb would you run?

bluevenom867

I will have images of molesting stuffed animals in

Dec 15, 2003

1,704

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St.Petersburg,FL

Dec 17, 2004

#21

• Dec 17, 2004

• #21

I got a 750 Speed Demon in my 86GT with a 357 (.030 over 351W).I could have gotten the Mighty Demon for like $40 more.I have head that the holley hp carbs are very good.talked with on of the guys at the local speed shop, said his buddy with a fox body (forget what year) picked up .3 tenth's with a mech sec. Holley HP carb over a vac. sec. Speed Demon (both were 650cfm).Of coarse looking at price the holley hp is almost $200 more than the speeed demon.

 

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83GT289

New Member

Sep 8, 2004

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Dec 17, 2004

#22

• Dec 17, 2004

• #22

I would bet that gain was from going from a vac secondary to mechanical and not just an advantage of the holley.

J.

 

D

Darkhorse845

Banned

Nov 17, 2004

101

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Las Vegas,Nevada

Dec 17, 2004

#23

• Dec 17, 2004

• #23

650 Speed Demon

 

QDRHRSE

New Member

Dec 31, 2002

1,590

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Palmdale, CA

Dec 17, 2004

#24

• Dec 17, 2004

• #24

I'd get a 625 Demon with Vacuum secondaries for your particular set up. A B Cam is a relatively small cam and makes good vacuum (being hydraulic [roller]).

 

85LXCoupe

Founding Member

Aug 27, 2001

216

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Victoria, BC, Canada

Dec 17, 2004

#25

• Dec 17, 2004

• #25

I'm looking for more of a race carb than a street carb. For winter drivability, I'll use the Edelbrock. For racing, I want max power.

For that purpose, would you go 650 or 750?

 

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83GT289

New Member

Sep 8, 2004

167

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Dec 18, 2004

#26

• Dec 18, 2004

• #26

Don't even think about putting a 750 on there. You would likely lose a good bit of power that way. Too much carb is just as bad if not worse than not enough carb. a 650 with mechanical secondaries would be PERFECT.

J.

 

PURESTREET5006

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Apr 1, 2003

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In the tech line for tear down"AGAIN"

Dec 18, 2004

#27

• Dec 18, 2004

• #27

I have a 650HP SERIES prepped by quickfuel on my small block...You need not go any bigger than that.

 

dastang2

Active Member

Dec 11, 2003

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tx

Dec 19, 2004

#28

• Dec 19, 2004

• #28

650