Vintage trap door air cleaner

[Huicho417]

I recently purchased and restored an original vintage 340 vacuum actuated trap door air cleaner. Looks great but compared to the open cleaner I purchased from summit is way too restrictive. I put it on to got to a show and have been running it for about a month now. Car has a faint smell of fuel and smokes a little when I accelerate hard from stop. I do have it connected to the manifold vac port on carb and the trap doors are functioning as they should.

There is a 2.5” round port under the snorkel that I can add a tube and route for fresh air intake. Would that help?

 

[oldkimmer]

I sure u need to dial in your tune. If u truly have a 318 that air cleaner will never be too restrictive. Kim