454 mag efi
 

How do you guys like the way they run.Do you think it is worth upgrading from my 310 mpi to the 385 mag mpi (found a used one complete with low hours]Do you guys think it is worth the swap?
Dave

Suppose it depends on the cost of the swap. More ponies are more ponies though.

Don't have either so I can't say much except if you want to supercharge, etc in the future upgrading to a mag motor could be a cost effective way prepare. Esp if its cheaper than upgrading your internals.