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Old 07-14-2022, 10:34 PM
sierrablue's Avatar
sierrablue sierrablue is offline
232 I6
 
Join Date: Jan 24, 2022
Location: Northern MN
Posts: 164
Buick 350 Injection

OK, I'm happy with the Qjet for driving around here, it's tuned right so I'm getting decent mileage (you know, for a brick with no overdrive or FI ). Trouble is I want to be able to cope with altitude, and it's always nice to have something just fire right up every single time, after letting it prime of course. And it'll help with colder weather, too, but anyway you guys already know the advantages of FI.

So on the B350, as I have the 4-barrel, I see two options. There's Holley Sniper for either the 2- or the 4-barrel manifold, which is the cheapest option that actually fits. I do not want to run an open adapter; if the barrels all line up and the bolt pattern's wrong, an adapter is ok, but I don't want an open adapter.

There's also the intake multiport injection from T/A Performance; but since that's 4k, it's out the window. Does anybody know of any other bolt-on TBI?
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Current Rig:
'71 Wagoneer (DD)
B350/TH400/D20
open knuckle D44 front (disc brakes)
6-lug conversion rear
http://www.ifsja.org/forums/vb/showt...79#post1734879

Previous Rig:
Tan '88 Grand Wagoneer
.030 over 401, TBI, headers
3" exhaust
31x10.5s
2" rear lift blocks
custom headliner
http://www.ifsja.org/forums/vb/showt...77#post1734777

"The engineering side of me says that it's more than strong enough. The redneck side of me says that it's going to fall apart and I need to beef it up."--somebody I know
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  #2  
Old 07-15-2022, 11:12 AM
sierrablue's Avatar
sierrablue sierrablue is offline
232 I6
 
Join Date: Jan 24, 2022
Location: Northern MN
Posts: 164
Just found this page--http://www.ifsja.org/forums/vb/showthread.php?t=159571

Wouldn't mind more info on the 454 TBI though...
__________________
Current Rig:
'71 Wagoneer (DD)
B350/TH400/D20
open knuckle D44 front (disc brakes)
6-lug conversion rear
http://www.ifsja.org/forums/vb/showt...79#post1734879

Previous Rig:
Tan '88 Grand Wagoneer
.030 over 401, TBI, headers
3" exhaust
31x10.5s
2" rear lift blocks
custom headliner
http://www.ifsja.org/forums/vb/showt...77#post1734777

"The engineering side of me says that it's more than strong enough. The redneck side of me says that it's going to fall apart and I need to beef it up."--somebody I know
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  #3  
Old 07-15-2022, 11:17 AM
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Herk Herk is offline
350 Buick
 
Join Date: Jun 12, 2006
Location: Boise, ID
Posts: 1,116
My plan is to just transplant a Rochester TBI off a 88-92 GM 5.7. Pretty straight forward. Info here https://www.binderplanet.com/forums/...rt-here.47254/


Have all the parts, but project is on hold until I can get some major sheetmetal damage fixed and get truck back on road
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1971 J-4700/Buick 350 Stage 1/TH400/D20/D44/D60/Koenig PTO Winch
2005 LJ Rubicon Pretty close to stock
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  #4  
Old 07-15-2022, 06:06 PM
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Achilles Achilles is offline
350 Buick
 
Join Date: May 12, 2004
Location: Texas
Posts: 1,173
Quote:
Originally Posted by Herk
My plan is to just transplant a Rochester TBI off a 88-92 GM 5.7. Pretty straight forward. Info here https://www.binderplanet.com/forums/...rt-here.47254/


Have all the parts, but project is on hold until I can get some major sheetmetal damage fixed and get truck back on road




Are you going to tune it yourself? I have the parts for this, but have been considering the Holley Sniper as of late for ease of setup.
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1983 Wagoneer Limeted, 169k 360 AMC, NP 229, 727,
MODS: 2003 Durango bucket seats:
http://www.ifsja.org/forums/vb/showthread.php?t=159286
Build Thread: http://www.ifsja.org/forums/vb/showthread.php?t=174925
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  #5  
Old 07-18-2022, 01:10 PM
sierrablue's Avatar
sierrablue sierrablue is offline
232 I6
 
Join Date: Jan 24, 2022
Location: Northern MN
Posts: 164
I'm curious about this too, as I know the GM TBI will be cheaper to do, but it's also more of a pain to tune. I'm sure somebody makes a program so you can use a modern computer for tuning it, right? The computer we used on the '88 TBI finally gave up the ghost and I'm not sure what to use instead. What're you using as a chip to start with? And I'm guessing you plan to tune it after that?

Is your plan still to use the 454 adapter to the 4-barrel manifold? I know the 2- and 4- barrels are both dual plane for these unless you get the Stage 3 intake from T/A, but the TBI can still theoretically take advantage of the dual-plane setup. And I know the 4-barrel manifold on the Buicks is just a much better design than the 2; the 2 is a weird shape and the Quadrajet isn't the only reason the 4-barrel makes so much more power/gets better mileage...

Thanks for the info Herk.
__________________
Current Rig:
'71 Wagoneer (DD)
B350/TH400/D20
open knuckle D44 front (disc brakes)
6-lug conversion rear
http://www.ifsja.org/forums/vb/showt...79#post1734879

Previous Rig:
Tan '88 Grand Wagoneer
.030 over 401, TBI, headers
3" exhaust
31x10.5s
2" rear lift blocks
custom headliner
http://www.ifsja.org/forums/vb/showt...77#post1734777

"The engineering side of me says that it's more than strong enough. The redneck side of me says that it's going to fall apart and I need to beef it up."--somebody I know
Reply With Quote
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