Tbi or carb? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

petefinsquish · 01-05-2011, 04:44 PM

I have a 87 350 tbi motor with no wiring harness, and was wondering if it's easier to get the harness and computer or use a quadrajet that I have? And if I use the carb what do I do with the lockup on the 700r?

Thank,
Pete
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Jonboy · 01-05-2011, 04:51 PM

if you use the carb, get a stand alone TCC control. Bowtie overdrives, Painless, and B&m offer one, off the top of my head. I am putting an 87 TBI engine in my '74; there is nowhere for teh fuel pump drive to go. That was the main reason I decided to go TBI.

petefinsquish · 01-05-2011, 04:58 PM

Thank you jonboy, and there is a plate on the left side of the motor where the mechanical pump can go...
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joe b · 01-05-2011, 05:02 PM

You better make sure there is a hole for the rod

Jonboy · 01-05-2011, 05:04 PM

Yep. Mine didn't have the cover, but there was no hole there, either. The boss is there and tapped, but no cover. I would bet there is no lobe on the cam to run the rod, either.

Tkmadone · 01-05-2011, 05:08 PM

The TBI will be much better for drivability and economy.

petefinsquish · 01-05-2011, 05:28 PM

It's going into a 70 chevy and I would like to just run the tbi, is that possible?I have no need for smog. I liked the simplicity of my 68 which was motor and a heater....lol
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01-05-2011, 04:44 PM	#1
petefinsquish Registered User Join Date: Jul 2009 Location: Oceanside California Posts: 18	Tbi or carb? I have a 87 350 tbi motor with no wiring harness, and was wondering if it's easier to get the harness and computer or use a quadrajet that I have? And if I use the carb what do I do with the lockup on the 700r? Thank, Pete Posted via Mobile Device

01-05-2011, 04:51 PM	#2
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	Re: Tbi or carb? if you use the carb, get a stand alone TCC control. Bowtie overdrives, Painless, and B&m offer one, off the top of my head. I am putting an 87 TBI engine in my '74; there is nowhere for teh fuel pump drive to go. That was the main reason I decided to go TBI. __________________ 1974 Jimmy- 5.3/4L80e/NP241

01-05-2011, 04:58 PM	#3
petefinsquish Registered User Join Date: Jul 2009 Location: Oceanside California Posts: 18	Re: Tbi or carb? Thank you jonboy, and there is a plate on the left side of the motor where the mechanical pump can go... Posted via Mobile Device

01-05-2011, 05:02 PM	#4
joe b Registered User Join Date: Feb 2005 Location: milford,ne. Posts: 51	Re: Tbi or carb? You better make sure there is a hole for the rod

01-05-2011, 05:04 PM	#5
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	Re: Tbi or carb? Yep. Mine didn't have the cover, but there was no hole there, either. The boss is there and tapped, but no cover. I would bet there is no lobe on the cam to run the rod, either. __________________ 1974 Jimmy- 5.3/4L80e/NP241

01-05-2011, 05:08 PM	#6
Tkmadone Registered User Join Date: Aug 2009 Location: Simi Valley, CA Posts: 193	Re: Tbi or carb? The TBI will be much better for drivability and economy.

01-05-2011, 05:28 PM	#7
petefinsquish Registered User Join Date: Jul 2009 Location: Oceanside California Posts: 18	Re: Tbi or carb? It's going into a 70 chevy and I would like to just run the tbi, is that possible?I have no need for smog. I liked the simplicity of my 68 which was motor and a heater....lol Posted via Mobile Device



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