[Ron Sutton]

Originally Posted by redefined

Are all of you guys asking about EFI options using this on SBC/BBC? Or are some of you using it on LS applications?

So far everyone has told me to just go LS.

I can't speak for Bryan or Don, but I was asking in general about the EFI units themselves. You sound like you're deciding between SBC or LS, but going EFI either way.

The current street & track engine package I plan to use & offer for sale is a carbureted 410" SBC that makes 600#/730 hp.

Later in 2014 I'm developing some killer 850+ HP Normally Aspirated LS engines. I wanted to see how the FAST 2.0 is working out ... and if the complaints I hear are factual ... and if so, then what are the better EFI systems.

From what Mark shared with us, it sounds like the FAST 2.0 system is not as tailorable, and therefore doesn't offer the improved street drive-ability that is the key reason for going EFI in the first place.

We can build the same power numbers with a carb. But a carb is impossible to get optimized at each level of the rpm range. The EFI systems are capable of optimizing the fule & spark curve ... and therefore improve the lower rpm drive-ability of any engine. But it sounds like ... at this point of product development ... that some brands do this better & some not so good.

Have you decided SBC or LS yet ?