625-CFM Street Demon? aka TQ....

Will a 70-71 340 air cleaner fit that Street Demon without a spacer?

I doubt it. Watch the video and he shows the air cleaner that is necessary near the end.

They talk a lot of clearance problems and adapters, due to the massive float bowls all over the internet. I had my speculations while waiting for mine in the mail.

Here is your answer-



The only thing between the carb and the cleaner is the supplied gasket. The closest area is the accelerator pump linkage that you can see on the right, but it still gets 1/4" of space at it's nearest point to the air horn area on the closest part of it's throw. It looks a lot closer in that pic than it actually is. Mind the crappy cellular low res pic.



Air horn clears the cleaner base radius diameter with no modification. The stud it comes with is long, which is typical for this air cleaner on all new carb kits.



The top larger hole on the cad plated universal linkage is where the Chrysler stud goes. Demon wants $25 or something close to that for the stud. I would suggest using an OE or coming up with something for 1/10 price at the hardware store.

The carb mount area on the manifold leans on the level table. Engine sits at an angle for proper driveshaft to rear axle angle in all cars, so the manifolds all have this taper. Nothing is obstructing the air cleaner to carb fitment for the carb to function properly. I've had the cleaner tight on the stud with the gasket and nothing comes close. This ended up being a-drop-in-and-go deal. No spacer.

You can buy their air cleaner and you can also buy their $25 throttle stud. I opted not to.

I have another thread running on this application on a 318 with '302 heads. I'll update it when the valves come in!