1966 Buick Riviera GS : Wrong engine and carb ?
Hi , i live in France and i own a 1966 Buick Riviera GS , an export model sold new in France .
After conducting research it seems that the original engine was replaced by another. Indeed one would have 425 MW code, or my engine code for MR , which specifies a 400 CI.
Furthermore the carburetor should be a Q-Jet was replaced with a Carter AFB whose identification number ( 3923S ) , indicates that it was intended for 425 of 1965 ; but the air cleaner is a chrome plated one , wich came with the 66' Riviera Gs .
I have no way of knowing if my engine is a 425 or 400, but I want to know the size of the carburetor i own (cfm) , if it is appropriate for a 400 CI , and if not, what type or size of carburetor replaced.
If my engine would still be a 425 CI, what was the type of
Q-Jet used with engines coded MW , or what was the type of Carter AFB carburetors used in mountings in 2x4BBL , on coded engine MZ ?
Thank your for your help . Bertrand .