I believe it will for the hydrogen part of it...but what about the hydrogen and PCV...would u be willing to test the Hydrogen alone...then test the hydrogen with the pcv jar?...from what i've read the biggest gains have been done with both hydrogen and pcv jar...hydrogen can vary depending on the car too...but yes that would be excellent if u could do that...thanks...

got my 78 merc with a 250 I6 and i love it.