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950 Proform Venturi size
#552189
12/12/09 06:23 PM
12/12/09 06:23 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Anybody know the venturi size on a Proform 950?
I cant seem to find the specs.
Thanks
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: 950 Proform Venturi size
[Re: Von]
#552190
12/12/09 07:56 PM
12/12/09 07:56 PM
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Joined: Oct 2003
Posts: 339
Wisconsin
BIGS
enthusiast
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enthusiast
Joined: Oct 2003
Posts: 339
Wisconsin
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Re: 950 Proform Venturi size
[Re: BIGS]
#552191
12/12/09 08:10 PM
12/12/09 08:10 PM
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Joined: Dec 2004
Posts: 10,658
Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,658
Rittman Ohio
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Jesse are those new Pro-Form 1050 annular carb bodies any good? I am going back to a 4150 style carb.because the Dominator is just not what I was looking for in a street carb. Sorry for the hijack but I was looking into the same body for my new carb. Gus 
64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
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Re: 950 Proform Venturi size
[Re: BIGS]
#552193
12/12/09 08:31 PM
12/12/09 08:31 PM
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Joined: Dec 2004
Posts: 10,658
Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,658
Rittman Ohio
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It's just an old 9375 that I attempted to modify with 4150 metering blocks.I have read many tuning threads on doing the conversion but I am still using stock metering blocks so I think therein lies my problem.I was going to use some BLP 2 circuit blocks and try to tune it in a little better.It runs very well wide open but seems a little mushy right when the secondaries tip in. Gus
64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
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Re: 950 Proform Venturi size
[Re: Von]
#552194
12/13/09 10:39 AM
12/13/09 10:39 AM
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Joined: Jan 2003
Posts: 16,941
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,941
NC
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Quote:
Anybody know the venturi size on a Proform 950?
Quote:
1.450 X 1.750....Jesse
Just FYI, as I recall the Holley 950 main body is 1.375 x 1.750, so it is different than the Proform.
Jesse do you have the other Proform sizes? 750, 800, 850
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Re: 950 Proform Venturi size
[Re: 440Jim]
#552195
12/13/09 10:49 AM
12/13/09 10:49 AM
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Joined: Oct 2003
Posts: 339
Wisconsin
BIGS
enthusiast
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enthusiast
Joined: Oct 2003
Posts: 339
Wisconsin
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Thats correct Jim on Holleys 950....1.375 X 1.750
But Proform has not stuck by the guildlines of Holley.....even Proforms 850 is still bigger then Holleys 950...
The Proform 850 is 1.400 X 1.750
Proforms 750 is the same as Holleys 750...1.375 X 1.720
Holley 750 HP...1.375 X 1.720
Proform 750.....1.375 X 1.720
Holley 950 HP...1.375 X 1.750
Proform 850.....1.400 X 1.750
Proform 950.....1.450 X 1.750
Jesse @ BIGS!!
Last edited by BIGS; 12/13/09 10:53 AM.
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Re: 950 Proform Venturi size
[Re: 440Jim]
#552197
12/13/09 12:44 PM
12/13/09 12:44 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Thanx for the info, Jesse!! That begs the question, what does the 950 PF actually flow? 
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: 950 Proform Venturi size
[Re: BIGS]
#552198
12/13/09 03:42 PM
12/13/09 03:42 PM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Holley 750 HP...1.375 X 1.720
Proform 750.....1.375 X 1.720
Holley 950 HP...1.375 X 1.750
Proform 850.....1.400 X 1.750
Proform 950.....1.450 X 1.750
Jesse @ BIGS!!
Jesse - Do all the above Proform main bodies use the same boosters? I ask this because when  some close-up pictures I saw on on either Jeg's or Summit's web sites, it looks like only their 950 has a stepped downleg. The others (including their 1050 downleg mb not listed above) appeared to have standard downleg w/o any additional steps machined into them.
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