Twin 45s 48s jetting

[Theyellowmex]

Hi iv got 2.1 pinto all steel race engine running 48s if i was to fit 45s would the jetting be the same?
Cheers

[Graham]

yes and no, a lot will depend on choke sizes, if the 48's have got 42mm chokes and the 45's 36mm then yes, very different.

but if your going from 40mm chokes in the 48's down to 38,s in the 45's its not going to be radically different