I've been tinkering around with 5200 series HW carbs for a while and I've gone to the 5210 HW for my 235. I presently am using: main 145 secondary 160, main air corrector 190 secondary 190, primary idle jet 65, secondary idle jet 70. f6 emulsion tubes. I have a tendency to be generous in fuel mix as to protect from excess heat. Getting a new aluminum radiator soon and can jet down for more economy. Found low cost jets overseas, $2.50 for mains. Check ALPHA 1750's carburetors parts store. Check out fordsix.com holley/weber jetting tips. Really good starting points.
