I would try it first just as it is, if you have the problem you can easily do the mod yourself...Take the carb and block off and look at the block..You will see the pulse hole in the block..Take a #29 drill and carefull drill from the outside of the block just deep enough to intersect the pulse hole..Tap the hole with an 8-32 tap..Unscrew the pressure tap from it's old location and plug the hole with a set screw..carefully screw the pressure tap into the new hole..Use some thread sealer to keep the tap from leaking...The wall thickness on the pressure tap is pretty thin, don't use much pressure when you screw it in..Connect the tap on the back of the carb to the fitting using the same hose, or if it's too short use a new one, length is not critical...You can rotate the carb if you want, it will make no difference where it goes...If you don't want to rotate the carb the shaft can be taken out and reversed...No rocket science needed here, just a little care...If the metal fitting on the back of the carb faces the wrong direction just twist it around, it's just a press fit in the hole...
If you happen strip the hole in the block some JB weld around it will work just fine, there's no heat there...[8D]