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305 quad to a 350 carb

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Old Mar 16, 2008 | 03:02 PM
  #1  
Syd91RS's Avatar
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Joined: Oct 2005
Posts: 18
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From: ST.louis, MO
Car: 91 rs
Engine: 305
Transmission: 700r4
305 quad to a 350 carb

i have an 87 camaro that had a 305 with a quad. And im wanting to put a 350 4 bbl.Is there any thing in the car i need to change.

i dint know if the computer under the dash for the 305 would be ok for the moment or not ? Any help

ive been looking and didnt see a thread on this. If there can some one post the link for me

Thanks in advance
Chris
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Old Mar 16, 2008 | 05:34 PM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You might not see one, but they're there. Discussed often.

To illustrate the answer: I tuned the secondaries (rods & hanger) with the stock LG4. When I souped up the 305, I adjusted the choke and idle speed. When I put in the 350 shortblock, I rebuilt the carb, but again simply did the standard adjustments. The system handles all of this very well.

You have an in-tank electric fuel pump, which are known to fail. Make sure it's up to snuff, replace all of the exhaust (from the heads to the rear bumper), and it'll handle the increase in displacement just fine.
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