Re: sb stroker carb recommendations???
[Re: 70challenger408]
#633383
03/07/10 10:18 PM
03/07/10 10:18 PM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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I run a 1050 dominator on mine, list 9375 and it work's real well, if you want to stay with a 4150 style then get a 950 or a custom 1050, those 408's like a lot of manifold plenum and a big carb. 
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: sb stroker carb recommendations???
[Re: 70challenger408]
#633386
03/07/10 10:41 PM
03/07/10 10:41 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Just got done with the sb 408 upgrades. I changed heads/cam/torque converter. the heads are ootb indybrocks, 1.5/1.6 rockers. cam is Comp solid roller 248/254 @ .50", 616/582 lift. tq is a reworked dynamic 9.5 with 4100 stall. Just got it all up and running, but seems like carb problems(currently has a 750 mighty demon). runs real rich, and has idle problems. is the carb too small???? what are you guys using for sb 408 strokers??? trying to get this ready for mopars at the strip. 
I know of a few that have had problems with Demons
specially on idle... I believe a 750 is too small
for your 408.... I run a 1050 on my 405ci... but
RPM has something to do with the carb selection
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Re: sb stroker carb recommendations???
[Re: 70challenger408]
#633387
03/07/10 11:14 PM
03/07/10 11:14 PM
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Joined: Dec 2003
Posts: 22,696
Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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Not to hijack, but what if a Indybrock 408 similiar cam but for road race with E-85 and 6000rpm max? Throttle response being more important then max output. 750, 850 or 950?
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: sb stroker carb recommendations???
[Re: jcc]
#633388
03/07/10 11:17 PM
03/07/10 11:17 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Not to hijack, but what if a Indybrock 408 similiar cam but for road race with E-85 and 6000rpm max? Throttle response being more important then max output. 750, 850 or 950?
For throttle response go with a smaller carb like a 750
specially with 6000 max
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Re: sb stroker carb recommendations???
[Re: Ian]
#633390
03/08/10 02:36 AM
03/08/10 02:36 AM
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Joined: Dec 2006
Posts: 214
Colo Springs, CO
DconD100
enthusiast
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enthusiast
Joined: Dec 2006
Posts: 214
Colo Springs, CO
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My 408 is all done at 6200rpm, and it is actually more throttle responsive with the 1000cfm quickfuel carb than it was with the proform 750! Must have been the tune, but I also picked up 2 tenths with the switch to the bigger carb. (M1 single plan with a one inch Wilson spacer) Also, the increase was observed on pump gas originally, and now still works great with the E85.
Pump Gas Small Blocks Rock!
11.53 @ 116mph E85 408 at 8500 ft da,
3605 pound truck, 3.91s, street driven
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Re: sb stroker carb recommendations???
[Re: AndyF]
#633397
03/08/10 05:55 PM
03/08/10 05:55 PM
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Joined: Dec 2006
Posts: 214
Colo Springs, CO
DconD100
enthusiast
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enthusiast
Joined: Dec 2006
Posts: 214
Colo Springs, CO
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I run my 1000cfm Holley (I said quickfuel before, but is a Holley with quickfuel E85 metering blocks) on my truck. Drive it every day...well when the streets aren't covered in snow anyway! I get the same 12mpg I got with the 750.
Pump Gas Small Blocks Rock!
11.53 @ 116mph E85 408 at 8500 ft da,
3605 pound truck, 3.91s, street driven
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Re: sb stroker carb recommendations???
[Re: JUST_N_TIME]
#633401
03/11/10 08:26 AM
03/11/10 08:26 AM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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I run Street Avenger 870s on them but with a little less cam. With your build Id say go with an HP950 if this is a strett car first and foremost.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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