Make sure the carb bodies, fuel lines, and air cleaners will clear the firewall. I think this is why most 3 or 5 carb set-ups seem to have narrow diameter air cleaners?
Also, on a 47-55 Chevy truck, the firewall to fender rod can be bent/contorted to still be used with some 2 carb intakes (Offenhauser, for example) but cannot be use with the 2 carb Fenton (I do not know about the Clifford). 3 and 5 carb intakes would most likely eliminate that rod (I have gone without it, but some people might be concerned about not having the firewall-to-fender rod in place).
Tim
