I run the Autometer phantom 2-5/8" elec. fp guage mounted in the A-pillar pod. It has excellent response and is very reliable...simple install for the most part too. I ended up mounting the sending unit on the driver side fender with a braided fuel line feeding it off the fuel rail (had to shop for the fuel lines and fittings...which is found at any performance shop).
A little pricey, but can't think of anything I'd like better.
As for placement...well, I don't think any placement besides the tach is going to be something you can easily read during a wot blast in the 1/4 mile. The nice thing about the A-pillar is you can focus on the fp during testing and still keep an eye on the road...can't do that too well if your mounting anywhere else (expect for where you have it now).
hth