For years we use to use EGT for the balance of fuel.. but
now that A/F meters came about most think EGTs are nothin but
trash.. I still use them to balance intakes(runners).. and until
about 15 years ago that was also how some tuned the fuel...most
fuels are designed for 1280*-1300*... some will go higher.. but
you have to know what all the specs are on that fuel... if it doesnt
give the temp spec on the MSDS sheet call the company... and 2 companies
that make the same fuel wont be the same