The throttle plate/base has a broken off idle mixture screw. I pulled 4-5 different BBD mixture screws and couldn't find a match!!

I pulled a base off another carb and have a lot of time invested in cleaning and flattening the mating surfaces on my stationary belt sander. I noticed the throttle blades have holes drilled in them, (318 carb) the other blades don't have hole. Is that a problem?

I don't want to swap blaeds as the screws are a PITA to work with. I would rather leave well enough alone.

Will I need to plug the holes? This is going on a stock '74 225.

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'72 Duster 198 stock cam, 3:23's

93 D350 Cummins THD Maxfuel 35mpg parts to hit 400hp+ Suncoast Cat2 A518, converter DDP Stage III injectors 62/64 HX35, 3 piece manifold, 4" Diamond Eye, Gear Venders OD. Stage I street/tow PDD head on order.

I say yes, others say no. People have had fine results using the 318 "holey" BBD throttle plates on slant six, but I choose to believe that Chrysler used a different part for a reason.

One thing I can tell you is that a friend of mine has run a Slant BBD and a 318 BBD on his car on a dyno with the AFR meter hooked up. The 318 carb was lean.

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Official Cookie and Mater Tormentor.

No problem! I bought JB Weld!

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'72 Duster 198 stock cam, 3:23's

93 D350 Cummins THD Maxfuel 35mpg parts to hit 400hp+ Suncoast Cat2 A518, converter DDP Stage III injectors 62/64 HX35, 3 piece manifold, 4" Diamond Eye, Gear Venders OD. Stage I street/tow PDD head on order.

Uhmmmmm on the off chance that a backfire knocks the JB weld loose and it get sucked in......

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Regards,
Fanie Gerber
It's never junk, it's just a part you're not currently using

http://www.valiant50.co.za
Just say I own a few Mopars

Well, it should pass through the motor. I was going to use the JB to hold some brass or aluminum screws.

I did check the jet wells for leakage. I used WD40. One leaked! I think a little JB or some Aero gasoline resistant sealer should fix that. Iam theorizing the gasket without any "ackenpookey" would be fine.

Leaky jet wells? Just like it's big brother the Thermoquad

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'72 Duster 198 stock cam, 3:23's

93 D350 Cummins THD Maxfuel 35mpg parts to hit 400hp+ Suncoast Cat2 A518, converter DDP Stage III injectors 62/64 HX35, 3 piece manifold, 4" Diamond Eye, Gear Venders OD. Stage I street/tow PDD head on order.