I apologize for straying from the Y block but I have a question regarding the FE water pump and bypass system. I have read past posts here that some of you place a restrictor in the Y-block bypass hose. I recall it is 3/16".  This modification reduces the heated water that just goes back into the block and bypasses being cooled by the radiator. This makes sense to me.

OK, on to my FE. I will need to replace the water pump in my 67 F250 with a 352. Since the bypass system is so similar to the Y I was thinking to do the same modification. With pump removed now would be the perfect time. I was wondering if any of you have done this or do you think it is a good or bad idea Thank you - Bob