Technical '28/'29 roadster cowl vent

I am getting back to working on my project and I would like to install a cowl vent. The threads I have read seem to have the concensus that while a '32 vent works well in '30s and '31s, but not so much in the '28s and '29s. And early '50s Studebakers and such just are not around much anymore. At least up here. I have found some RV vent that could work, but so far they are aluminum. So, I'm looking to hear from someone who has either successfully tweaked a '32 vent into a '28/'29 roadster or someone who has found a newer vent that worked and somewhat more readily available. Thanks.

 

26/7 Ford "Vent" gas door can be grafted in and turned into a vent

 

I didnt have any issues putting a 32 vent in both 28 and 30 model a gas tank. Both were the brookville replacement with metal trim. Ive also fit a 35 ford cowl vent into a 30 cowl.

 

Thanks, that's what I wanted to hear.

 

I'd be afraid of the fuel sloshing out when it's left open like that

 

If you cut out the tank but still have the neck, just run it without the gas cap.
So much pressure in front of that flat windshield, the air flows right down the neck.

 

Mack trucks have had vents in the doors. Not sure if they still do but they did fairly recently. You may be able to get one to work for you.

 

I wonder if could adapt a 1936 Ford horn cover to fit over the gas cap neck or cut top out of regular gas cap and adapt the 36 cover to that cap. Then just switch between the modified cap and an original cap if the weather was cold,

 

I used a Willys Jeep station wagon cowl vent on my ‘30 Model A coupe, it worked well…

 

I had a couple of cowl vents, but they were out of the cowl sides, of an Anglia. They are fairly flat though, not much crown.

 

I have looked at some big trucks and some have some possibilities. So I am getting a better idea of solutions. Would prefer to use something new, either Brookeville or something else, so the welding process works out easier. But keep the suggestions coming

 

I don't know the correct body style for 28-29 Model A 4-door sedans, but some of them had a left side factory cowl vent. These cowls flared in to take the 28 hood, yet featured a wider 4-sedan body. They used a roadster/coupe gas tank under the cowl. My brother was a Model A restorer and years ago would pick the cowls up for a real bargain. I had two of them and used one on my 28 Mercury Torpedo Sedan 30 years ago. Still going good. To me, the vent looked real close to the one I had on a 51 Studebaker.

 

Murray body perhaps ?