I have a polished TWM stacked FI system on my 427w using Accel DFI Gen VII engine management system. Beautiful and clean stack system with fuel rails running down the middle. Lots of power,
good wow factor. But currently running a bit rich(?)
DOWNSIDE: Budget $1000 to upgrade your fuel system. Also check your cam specs with your EFI manufacturer. (Comp Cams recommends a special grind) Make sure there is a tuner for your engine managment system locally. (No local Accel tuner in the Bay Area!
) Seems that most tuners are tuning the FAS system. Could set you back $10k
I am considering the Jim Inglese Weber system for my Daytona 347 ... no need for computer, no upgrade to fuel system ... 1/2 the cost.