displacement increase:new fuel system?

hi all!
i'm currently having a new blown alky mopar wedge engine built(KB block instead of cast iron production block),and increasing displacement from 413 cui to 454.
heads and blower remain the same,but should i have my injection system completely reset?
my current system is a bug catcher with hat nozzles only,enderle 110 pump and 22% OD 8:71 khul blower.
it all goes in a 100 in wheelbase lightweight altered.
thanks for any input
cyril

 

You will need way more fuel. How many gpm was your old set up. Also run port nozzles as you will have trouble with ex valves and head gaskets. What sort of power you hoping for?

 

hi!
my pump delivers 12.49 GPM at 4000 RPM (free flow) and 12.43 gpm at 100 PSI.
when i got it rebuilt and flowed,i was told this pump would be ok for a single stage system.
i have aN ENDERLE 990 that needs to be flowed,which will be done when i have the complete system reset with additional port nozzles,as you mentioned.
targeted HP is in the 1000-1200 range as the limiting factors are the transmission and the chassis wheelbase.
overall weight is about 1500 lbs,around 200 lbs lighter than the previous setup.
thanks again for your precious advice!