New Magnum heads for 347 with Flow data

skrews said

Quoted for the truth. Alot of people lose sight of this fact. Different flow bench brands can have quite the variance in numbers. Even in the Super Flo line I've seen some fairly wide discrepancies between the 600 and 1020 and from one 1020 to another 1020. People get caught up in the bench racing game too easily, myself included. What really matters is the A to B testing results off the same bench with the same operator.

Click to expand...

True.
For the most part I get about the same as most, but Hughes must have a a mouse hole in the bottom , that or theirs is the end all and we are all full of it.

Mainly something to consider aside from that is honesty in prep, are the heads really untouched ? 3,5,7 angle valve job? What valves? Sunk? Chamber unshrouding cut?

When I see numbers from anothers bench fall in line with my own, consistantly, for instance 3 vendors here have posted numbers damn near identical to my own testing ...it which says a lot about the accuracy and how close most bench in reality are. When others numbers don't jive with my own honest testing...kinda shows they may have a problem on their end.
:sign3:

This was in line with skrews post, not directed at RAMM.