I'm confused, the BPW is set to 95 which I believe is correct for a 2.5L 6 cyl w/ 50# injectors, at least that is what I get when I use any of the calculators floating around.

UPDATE: Reducing PRP - Gain vs Error and PRP - Gain vs airflow by 25% eliminated the SOTP variation in steady state cruise but still showed a fair bit of AFR variation on the WB, +/- 0.5 or so. A...

Thanks for the suggestions Ony. With no knock sensor how does burst knock work?

The car runs fine in open loop mode but has a surge during closed loop steady state cruise. The comments in PRP -...

'73 TR6 2.5L in-line 6.
No VSS (one on order but not here yet, ran without on with the '288)
No Knock sensor
No EGR
No IAC

As a newbie and wanting to learn I couldn't leave well enough alone...