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EFI for chevy 400

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Old Oct 10, 2003 | 12:38 AM
  #1  
acidpad's Avatar
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Joined: Jul 2002
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From: Ohio
Car: 1991 RS
Engine: 406 in progress
Transmission: th350
EFI for chevy 400

I'm in the process of designing a build up from a chevy 400 block that i have in my garage, and ive decided that i want to go with some sort of electronic fuel injection. The general concept behind this motor is for it to make ~ 500 HP and possibly have either a turbo (maybe 2) or a supercharger. many of the aftermarket EFI setups that you see through JEGS or SUMMIT have a limit of about 400 to 500 HP. I dont want my injection to be my bottleneck if i decided that i need more power. I'm basically looking for any, and all, suggestion on how to approach this, or setups that are known to handle this kind of power.
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Old Oct 10, 2003 | 02:59 AM
  #2  
bigals87z28's Avatar
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Joined: Nov 2001
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From: Ocean, NJ
Car: Check The Sig
well... best way to make a good 500 would be some type of HSR or mini ram. maybe some type of converted carb set up would be good too. Its all up to how much $$$ you wana dish out.
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Old Oct 10, 2003 | 08:30 AM
  #3  
88TPI406GTA's Avatar
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Joined: Sep 2001
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From: MN
Car: 2009 Pontiac G8 GXP
Engine: LS3
Transmission: 6L80E
Axle/Gears: 3.27
If you don't want the intake setup to be an issue, then look at a single plane intake with a billet TB on top....but it depends on your actual HP goals....

The stealth ram is nice, but not able to be matched to a 1206 Fel Pro gasket....and most large port heads are matched to that gasket...

Not that that stopped me, but I am not using it to its potential, that is for sure....


But the key is to figure out the HP goal first and build your combo from there...
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