Running Lean, Suggestions Options

[BMartin914]

I've got a '74 2.0 engine with d-jet that is running lean. Biggest indications are whitish plugs and high oil temps - about 240-250 after highway cruising in 90-95 degree weather (very little humidity). While moving oil is about 230-235, but when stopped or considerably slowed, temps rise to about 245-250. Cyl head temps will stay a consistent 300-325.

I have switched out 3 good MPSs. 2 049s and an 037. I cannot seem to find an 043, but thought that at least with the 037 I would see some difference in running condition. I have also switched out 2 TS2 sensors with no difference in plug color or oil temps. I plan on trying to retard my timing some, check fuel pressure and replace filter tonight. Possibly bump pressure up to 32-34 psi.

Short of dyno'ing the car (which I cannot afford to do at the moment) does anyone have any suggestions for richening up the mixture?

I am considering a pot on the TS2 sensor. But that would only be if nothing else works.

Additionally, I do not seem to have a sock strainer in my tank. Where should this strainer be and is it possible to simply drop one in? Just noticed this late last night.

TIA

[BMartin914]

I suspect that the car has been running lean for some time now. When I purchased it last year it would not pass emissions - PO had his mechanic re-time and adjust MPS. Leaned out car to pass.

I tuned the car about 9 mos ago with new Bosch plugs - standard for the engine (W7CC IIRC). I still have the old plugs and will check them when I get home, but I believ that they looked similar. They were not a nice tan color though, definitely lighter.

I changed the oil temp sender and gauge module with one from a 911. Purchsed a matched set from Automotion. I have not yet tested the gauge and sender, but it has been suggested. Shortly thereafter I installed a CHT gauge, so it hasn't been but a few months that I have been able to accurately monitor the engine and it has not been hot enough until recently to notice the problem.

All tin and flaps are in place and cooler *appears* clean but I plan on checking behind it once I get the car up on stands to do the filter.