I had no issues with the stock in upper and lower on the 2001 heads with secondaries. You can also just remove the butterfly plates while leaving the linkage hooked up if you didn't want secondaries in there until you can get a tune to turn it off. The offset injector has so far proved to have no issues at all, so I wouldn't even worry about doing it and using a little epoxy filler seems easy compared to all the fuel rail issues and mounting costs. Look at it as spending about 2 hours and 5 bucks to convert the heads over to the original SVT LIM versus the converting the fuel rail for an oval LIM.


Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black