Do i need a different throttle spring and backet?

[67cudaResto89]

Tryin to figure out if i need a different throttle return spring and bracket since im converting from a 2bbl carter to a 4bbl holley 600cfm? Its a 318, i know i have to get a different kickdown linkage but not sure if i can reuse the original throttle bracket nd return spring my first one so not quite sure thanks!