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The horse power is up to you
Mass-flow is still in business and can reflash
The computer to your spec - bigger injectors, turbos, supercharger etc
This was on a 400 hp motor
The distributor has an adapter for the 383 so remove it
And use intake plates to put it on 440
Looking for new cam...
Mass-flow fuel injection system for 383
Comes with install paper work and parts list
1000 obo
will consider big block parts in part trade
Will ship lower 48 at cost
Pm me
I have a complete 383 efi set up from mass flow , intake throttle body , computer , distributor, wiring harness, etc
just need fuel pump and regulator, for 700.00 plus shipping