GTOKen, thats interesting , I have been contemplating doing that extra "T" to get 'extra' cooling , sounds like it may not be worth it... I have a heater valve that will not close 100%, so I installed an 'inline' shut off valve (a la Home Depot )to keep my feet cool in summer, I open the valve for winter use...and after I changed my heads out last winter to 5C`s , milled down to 88 cc, added 1.65 rockers,plus I leaned out the carb some, it ran a little rich... my engine has now run a little bit warmer...rather than the steady 190F before it now runs 200-215 in summer( dep on speeds) ,in Texas 95F plus weather, so I was contemplating adding the "T" to be able to run that little water that normally goes to the heater core all the time thru the back of the pass. head...you`re saying it wont make much difference?...if so, youre saving me some unnecessary work...
)to keep my feet cool in summer, I open the valve for winter use...and after I changed my heads out last winter to 5C`s , milled down to 88 cc, added 1.65 rockers,plus I leaned out the carb some, it ran a little rich... my engine has now run a little bit warmer...rather than the steady 190F before it now runs 200-215 in summer( dep on speeds) ,in Texas 95F plus weather, so I was contemplating adding the "T" to be able to run that little water that normally goes to the heater core all the time thru the back of the pass. head...you`re saying it wont make much difference?...if so, youre saving me some unnecessary work... 
