Edelbrock 1406 whistling

UPDATE: I replaced the intake gaskets and the new carb base gasket, and I’m proud to say that I have stopped those leaks.

Finally.

Liberal spraying of carb cleaner around the base and the intake make no impact whatsoever.

But, here’s the kicker…THE DAMN THING STILL WHISTLES.

And it runs like ****. I mean, it runs bad…..it sounds like it’s missing on 2 cylinders. I replaced the No. 2 and 4 cylinder plug wires (that’s where the leak was), but to no avail. I then pulled those two plugs and found them to be burnt brown on the tips and insulators (but not oily). I have to pick up a couple of new plugs this week to rule those out, but there’s something else happening that’s making me wonder if this is a more serious problem.

When I start it up, it whistles as usual, but it also makes a loud “chuffing” noise, which sounds like it’s coming from that side of the block. It’s not constant like an open plug hole, but more of an intermittent, hollow “popping” noise, sounding a lot like one of those old-time John Deere “poppin’ Johnny” 2-strokes you hear at the car shows.

Or an exhaust leak, perhaps, but I can’t see that making it whistle…I don’t have a compression tester, but if you guys think it could be that, I’ll try to dig one up. Unless there’s another way to check, like the old paper-sucking-on-the-exhaust-tip trick…any ideas what may be causing this new issue?

BTW, my heartfelt thanks goes out to all you guys who have helped my figure out this leak problem….I couldn’t have done it without you, and that's no lie. :thumbup:

Now, if I could only figure this latest problem out, it might stop me from blowing this @#@!&#!! Plymouth to pieces, or setting the @#@!&#!! thing on fire….:cussing:

Rob