Looking for thoughts on use of the bigger Autolite 1.21 venturi carb on a mildly warmed over 292.  They are rated at 350 cfm, and were used on the 351 Fords in Mercury and Mustang.  I have been using a 1.14 venturi with 52 or 53 jets the past year and like it.  It has something like a 300 cfm rating. 

IF the smaller displacement Y was overpowered by the 1.21, what would be some of the symptoms?  Past readings of Autolite gurus indicate the Ford carburetors were model specific in application.  Since the carbs arent very tunable,  getting too far away from original application in terms of vehicle weight, transmission, engine, etc. leads to trouble.  But like I said the 1.14 has worked great in an engine which originally came with a little 1.02.

Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.