i have a 1972 350 rocket in my cutlass with a 4 barrel holley carb and im wondering if that carb will fit on a 425 super rocket, cuz im switching the engines.

 

If the intakes are both spread bore, and carb is, it will work. I just changed my 72 350 to 455, but I have the Qjet, and I checked my book and jets and rods are all the same. I checked the older 425 ones like 66-67 to a 330 of those years, and they use the same jets size, but the rods are one size different, very little difference. You can rejet it if you need to? Probably will work OK as is.

 

k thanks