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.

This was right around the time of stricter emission standards in North America and many things were done to meet those standards including removing the standard injection system in favor of carbs,...

Vacuum retard line WAS connected to dizzy, no longer part of the system since the dizzy internals were removed/replaced. I have attached a scan from the service manual page dealing with the...

Finally got around to getting some pics. The injectors are hidden within the ZS carb bodies, one injector each. Stock intake manifold, no IAC. TPS mounted on the end of the throttle linkage with a...

Calling all spark table gurus, wizards, and anyone with comments or suggestions.

I need some assistance in converting stock advance and retard values into a starting spark table. This is for a...

I've just gone through a very similar issue with a slight surge at steady state cruise. WB showed wide fluctuations in AFR. Lowering PRP - Gain vs error and PRP - Gain vs airflow by 25% removed the...

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...

I started out with a very early version of this: http://www.affordable-fuel-injection.com/browse-by-system/side-draft-tbi.html. Utilizes the ZS carb bodies and the stock intake with a machined...

Newbie here with kind of an unusual setup compared to most on here :)

1973 Triumph TR6 with GM TBI conversion using 16144288. 2.5L in-line 6 with Goodparts GP2 cam and 1:1.65 rockers and...