Accel DFI does not have Alpha-N or a TPS/MAP blend like the MoTec or Redline EFI controllers. I have considered running the TPS input into the MAP sensor since both are linear 5-volt controllers. That is totally uncharted territory and I rather not tread there if I don't have to.
I have been spending lots of time on the GT-40 websites, there are a lot of guys there with stack EFI systems. Most of my conversations have been with guys in Australia and the UK. The Spence car has gone international!
I was lucky to find another guy who is running an Accel on an ITB system and he posted a ECU control file specifically for this type of manifold. As soon as I get the motor screwed together I will give that a try as well.
We should be able to make Homecoming, although the car may not be tuned perfectly. I'll bring an extra set of plugs (or two) in case we foul them and hope for the best!
Some days a carb is a good thing, but once we get this system dialed in there won't be a carb that can compete!
Brian Carlson
Unique 9122 - 289 FIA - 351W with 8 stack EFI - Formerly known as the "Legendary Spence Car"