Throttle Body

The new throttle body has arrived.  I have taken it apart because I plan to paint the throttle shafts and plates with a high tech paint used on internal gun parts.  It will help to protect the mild steel parts from rusting, this is a boat after all.  It will also help to lubricate the shafts where they pass through the bronze bushings in the throttle body.  The paint is on order and will be here soon.
 

Intake Modifications

 

The first step in converting this thing to EFI is to add material at the end of the runners so I can machine them for fuel injectors.  I could have bought bungs to weld in, but I like  look of the injector being mounted right in the runner itself.  I have not decided how I'm going to finish the manifold yet, but I have plenty of time to figure it out.

Multiport Fuel Injection

After fighting with a throttle body fuel injection system for almost 3 years, I have decided to bite the bullet and go with a multiport setup based on a MicroSquirt.  I purchased an Edelbrock Performer intake manifold and plan to convert it to EFI myself.  All the EFI intakes I could find were for higher RPM applications than my 1995 ski boat.