which vented gas cap?

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Jul 11, 2016 | 08:55 PM

garym52

Thread Starter

Racer

Joined: Mar 2011

Posts: 252

Likes: 3

which vented gas cap?

i installed the fitech system on my car and did away with the charcoal filter. now I need a vented cap and purchased one but it seems to be building up a lot of pressure when I run the car in the garage. I have 't got out on the street yet, but wanted to see which vented cap you guys are using - 1979 383 with Fitech TBI.

Thanks,
gary

Jul 12, 2016 | 08:34 AM

Street Rat

Le Mans Master

Joined: Aug 2010

Posts: 5,339

Likes: 546

From: Central Texas

I drilled a small hole on the center of the fuel side of the gas cap to vent my system. It seems to work fine though. Just call me Bubba.

Jul 12, 2016 | 09:24 AM

golfboy

Instructor

Joined: Nov 2015

Posts: 195

Likes: 22

From: Ellenton, Florida

Vented gas cap

Garym52, I purchased a vented gas cap from O'reilleys Auto Parts that they listed for a 1978 Corvette for about $10.00. It works fine.

Jul 12, 2016 | 10:25 AM

red topless gator

Melting Slicks

Joined: Nov 2000

Posts: 2,507

Likes: 114

From: St. Louis Mo

Quote:

Originally Posted by Street Rat

I drilled a small hole on the center of the fuel side of the gas cap to vent my system. It seems to work fine though. Just call me Bubba.

Did the same thing, works fine

Jul 12, 2016 | 10:39 AM

mrvette

Team Owner

Joined: Jul 1999

Posts: 65,492

Likes: 230

From: Orange Park Florida

I have a large chrome key locking gas cap, and it's vented on my '72.....I also went DPFI and yes the fuel gets warmed up running through the rails, and regulator, and then back to the tank....

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