I have seen your previous threads and ask why you want to increase the water temps? I have had both Pfaff and Teague motors and they like to run them as cool as possible. I currently have twin 1,100 HP 572 CI blower motors and they run right at 95- 100 degrees....
I suggest you consider a different approach. Look at the tune on the motor. Sounds like it is off. I have run many big HP, big inch N/A motors and when the tune is right they ran great at low water temps....
You may be correct about my tune being off. I am quite certain that I could tune the motor to run efficiently at these colder temps. The reason why I am not doing this and moving on is because I believe it is of utmost importance to get the oil temps up higher then they are reaching when I let the motor run at 95 degrees.