TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

what shape are the exhuast ports on a 305 tbi?

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Old Mar 7, 2001 | 09:00 PM
  #1  
nichoulas83Z454's Avatar
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Joined: Feb 2001
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From: orange texas
what shape are the exhuast ports on a 305 tbi?

square, round, or D_port... im getting ready to install some used headers i bought for my 92' rs this weekend... i have everything i need except for exhuast gaskets...
i wanna have everything i need before i get started so i dont have to borrow anyones car...

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Old Mar 7, 2001 | 10:41 PM
  #2  
Mark305TBI's Avatar
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Joined: Jul 1999
Posts: 1,431
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From: Huntsville, AL
Car: '00 Chevrolet Corvette
Engine: LS1
Transmission: 4L60E
Axle/Gears: 2.73
Mine were round. My new Vette heads have the D-ports.

-Mark W.
'88 SC Camaro w/ 305 TBI
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Old Mar 8, 2001 | 03:24 PM
  #3  
Pukka's Avatar
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From: Where the chicks absolutely LOVE the V-8 rumble!
Car: 92 RS - Fully Restored w/Custom Int
Engine: LO3 with some mods
Transmission: T-5
Axle/Gears: 3.42 Richmond
I'm pretty sure mine were square. Best bet is to look at the headers when you get them.

------------------
92 Camaro RS LO3, 5-spd, T-tops
Performance:
SLP 1 3/4" Headers (Coated by Paul Barry Motorsports), Flowmaster Catback Exhaust, Fastchip Performance PROM, Centerforce Dual Friction Clutch, Xact 8mm wires, Open Air Element w/K&N Filter, Z28 Grille w/aftmkt fog lamps
Electronics:
Alpine 8030 Alarm System, Valentine One Radar Detector (How did I ever drive without one?), Pioneer DEH 7450 Head Unit w/6-pack CD changer, Pioneer DEQ 7600 Sound Processor, 2 Kenwood KAC-846 Amps powering 2 12" Pro Red subs, 2 Pioneer 6x9 and 2 MTX 4x6 speakers.
NEXT UP: TBI mods, Edelbrock performer intake
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