Think about stand alone fuel management. You should see better results with same setup.
I run 421 cams, I've done it against every voice on this forum
I do not regret it
still working on the project thou.
Idle is in fact the issue (1250rpm on standard ECU). no problem in day to day driving (that's what I was afraid most) but than again mine is ph1 with cable throttle.
My advice do not go past the 428 point
Unless You're up to what's coming
and only with SA ECU