Reply to "efi"

I figured I had four choices for an intake manifold.
1. TFS R-series
2. TFS Box-R
3. RPM Air Gap dual plane
4. TFS Track Heat

1. I decided against the TFS R-series because of the added machining work as well as the chassis dyno curve from this build.
http://www.mustang50magazine.c..._dream/photo_14.html
The dyno sheet makes it look like the R-series intake is really limiting the top end on that 408 Clevor but it could be something else I suppose. I'm comparing that build to this one that uses the RPM Air Gap on an engine dyno.

2. TFS Box R had great recommendations from TFS for a 351c build but the upper manifold looks like it will require machining of the rear deck to get it to fit.

3. RPM Air Gap dual plane manifold looks to be a good manifold if I was staying carbureted, but since I’ll be injecting the fuel at the outlet of the manifold, the dual plane really doesn’t do much and that I should go with a single plane manifold for FI, at least that’s what I’ve heard. The RPM Air Gap power looks very appealing in this build which I am trying to replicate with a 357c. http://www.mustangandfords.com...engine/photo_21.html

4. TFS Track Heat single plane will bolt directly to my TFS heads and shouldn’t require much for port matching if any. It already has the injector bosses cast into the manifold.

So, since the dedicated EFI manifolds were out as well as the dual plane manifolds, I decided to go with the Track Heat carb style manifold and have Kevin Thompson adapt it for efi. I haven't heard much on the TFS Track Heat manifold I went with. Converting to EFI is a pain, but swapping manifolds is easy, so in the future, if something better comes along, I'll use it.