KR won't go away!!

[hquick]

These are 42lb injectors right? Rated at the GM standard of 43.5psi?
Stock regulator and fuel pressure of 58psi?
From the available spreadsheets....I have your IFR's at around 6.110675???
I had the Bosch 'greentop' Ford motorsport injectors for a while.
They were just too big for the 'upto' 8psi I was running.
Duty cycle barely ever reached 30%.
'Dynamics' allow you to counter the 'lean tip-in' issues the Whipple generates as you tap the accelerator.
Do a search for 'lean tip-in' and start reading.

[willn]

Actually I found out the hard way that they are the stock 8.1L injectors because I initially thought they were 42#ers but then when I tuned for that it dumped fuel in the cylinders and wouldn't run at all, but when I go to stock 8.1L IFR, it runs fine. Now, my issue is that it is surging at idle and LT's peg at 25% no matter what I do to the VE table. I am thinking since I put a rich mixture through it I either ruined the O2s or fouled a plug. Not sure yet.