aftermarket EFI tuning

[Blown353]

I'm with Jody here; if you run single-plane, go with an elbow and a monoblade to get the hat out of the picture. You can run whatever monoblade TB you want, and I believe Wilson makes the 90 degree elbows. A 75mm monoblade would be more than enough. If you go too big on a monoblade, off-idle throttle response becomes quite touchy as just a small move on that big butterfly results in a HUGE amount of additional airflow. It can also make tuning the enrichment parameters tricky as you can cause massive and rapid vacuum swings with just a tiny bit of movement; it will take some tweaking of the AE vs. MAP rate and AE vs. TPS rate to make things work smoothly, while a 4 hole TB will be more forgiving as it takes a greater throttle input to cause a vacuum change on the same magnitude.

The monoblade throttle bodies are also cheaper and simpler than the 4-hole holley-style throttle bodies; less shaft seals to leak, no progressive linkage and the associated wear points, etc. You'll be a bit more restricted on plumbing since the TB will point straight forward, but you should be able to work around that.

Another recommendation for Rob @ Force EFI here. I bought all my FAST stuff through him and he custom did a wiring harness for me; nice guy, fair prices, and nice work.

Troy