mavmaverick
I have a 72 Mav with a 170 I6.
It increased my MPG but since it takes me a month to empty the tank I have not have a chance to check for sure, so far I'm at five weeks on the tank so I'm getting an extra week.
I love the sound the intake makes now in the mid RPM range when I punch it. It make a raspy throughty buzz.
Not sure if I got any power increase. Mostly interested in milage. The 170 is powerful enough for my uses.
I even towed a packed trailer (5X7 Jartran) from Siera Vista AZ to Sunnyvale CA. The grape vine was the only challenge. 55 MPH in second going up hill what a rush, it took it though and came back for more, that was 24 years ago on a 69.5 mav with a 170 that was already 13 years old.