just put in a 225 where my 170 had been-- anyhow --should a 170 carb bbs work for the 225 holley? the car will not accelerate correctly -- this happened on another holley equipped 225 (swapped the 170bbs on) -- put the old holley on & the car ran great.

I also measured the base opening & was surprised at the difference in the size--
Would like to use bbs carb -- have more parts-- only 1 holley ---

also the gasket did not cover the hole used on the holley style carbs-- could this be a problem for the bbs?

Anyhow I have a larger bbs & the holley that came on the engine(1965 225 --50k motor) & will experiment with them on Sunday

Anyones experience in this area would be appreciated-- I don't think trans-x will help in this case.
Thanks-- Lawrence

Just for your info. The 1965 170 standard shift had a smaller holley carb, then the 170 auto, or the 225 standard and auto. I don't know what other years had this difference.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225