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Old 09-07-2007, 07:05 PM   #1
ktisdale_2
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Join Date: Jul 2006
Location: Hattiesburg, Mississippi
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'93 C1500 350 TBI Specs

I'm in the process of rebuilding the 350 in my C1500. Its a daily driver and I was looking at CFM Tech's throttle bodies. Does anybody know what the stock specs (ie, bore size for the air intake holes) on the TBI for that model? Any and all help will be greatly appreciated. I want to keep it a daily driver and don't want to burn more gas than needed.
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'93 GMC Sierra Xtended Cab
350 ci crate engine., 2" Swirl Torque carb spacer, K&N Cold Air Intake, Hedman Headers, Underdrive Pulleys, No-cat 3" true dual exhaust, Dual DeltaFlow 40 Series Flowmaster Mufflers, B&M Shift Plus Kit, SuperChip, Dual 12" Memphis M-Class subs in Custom under-seat downfiring box, '98 Chevy All Chrome grille w/ Billet Bowtie, Clear corners, Rhino Spray-in bedliner.


'97 Grand Am 2. something.
All stock, gas saver....
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Old 09-10-2007, 03:19 PM   #2
barnie72
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Re: '93 C1500 350 TBI Specs

the stock intake holes are 1" & 11/16. so in other words, 5/16" short of 2 inches.
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