ok. i need some info to confirm what i think is correct. 57 and up y-block 4bbl intakes have the correct carb flange bolt pattern to use modern 4bbl squarebore carbs(holley 4150 4bbl)???? 56 and earlier intakes use the teapot bolt pattern right and a modern holley 4150 carb wont bolt up correctly??? Is this the part number for the correct intake to use the modern carbs.  ECZ-9425-A????? this one is for sale on ebay. heres the link: http://cgi.ebay.com/ebaymotors/1956-1957-1955-intake-272-292-312-Y-block-4-barrel-ford_W0QQcmdZViewItemQQcategoryZ36474QQihZ016QQitemZ260221456492QQrdZ1QQsspagenameZWDVW.  thanks for any imput.