Howdy Chumbucket.<br /><br />Theoretically, it would reduce the readings, but I haven't experienced any effect on thr readings at all.<br /><br />Good luck.
JB reason i asked cause ,just thought about that i forget to open throttle when i did my 150 merc. No biggy not in water yet. Ill redo They were all over 100 , not to bad for 82 Power head never redone Thanks
Jb Forgot to mention i served on board USS Lextington with lot of your fellow Texan's in early 1960's Good bunch of guys Best ship ever on out of 5 i was on
