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Phenolic or Nitrile Rubber Composite

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Old 09-15-2010, 08:09 PM
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Car: 1989 Camaro RS
Engine: 350
Transmission: T-5
Axle/Gears: 3.42 auburn limited slip
Phenolic or Nitrile Rubber Composite

Which one do you think is better? I am experiencing fuel boiling in edelbrock carb. Rubber on is made by edelbrock, but I don't know if it would be the way to go. Don't know much about it, and debating to spend a little extra and get phenolic one.

Link to Nitrile Rubber:

http://www.summitracing.com/parts/EDL-9266/
Old 09-16-2010, 07:05 AM
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Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Re: Phenolic or Nitrile Rubber Composite

I've always used phenolic spacers with good results.
Old 09-16-2010, 11:43 AM
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Car: 1990 Camaro RS (Racecar)/1991 Z28
Engine: 355 Race Engine/Stock TPI 350
Transmission: Borg Warner T5/Borg Warner T5
Axle/Gears: 4.10/2.73
Re: Phenolic or Nitrile Rubber Composite

be sure to check all the fuel lines i had one line touching the lower radiator hose and making some wicked vapor lock. Went to AN lines with heat shield (massive overkill, it just looked pretty) and cleared it right up. Your intakes got to be getting pretty hot to boil fuel in the bowls. If all your lines are clear and its still happening go with the phenolic spacer, but id be sure its not something else first. Good luck
Attached Thumbnails Phenolic or Nitrile Rubber Composite-engine.jpg  
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