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**Palf70Step** · 01-27-2020, 09:45 PM

I think most of the difference is in the heads. The engine in my 83 was a 70's era 350, and the vortecs is way better flow than the TBI. I am sure you could tune up a TBI, just not sure how much control you have or tweaking that can be done with the factory one.

01-27-2020, 09:45 PM	#6
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 46,644	Re: 94 Chevy truck Question I think most of the difference is in the heads. The engine in my 83 was a 70's era 350, and the vortecs is way better flow than the TBI. I am sure you could tune up a TBI, just not sure how much control you have or tweaking that can be done with the factory one. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!