Originally Posted by moparx
keep in mind, the super thin [wt wise] oils are for modern engine clearances, which are much tighter.
beer

This.
On the Engine Masters the 20/50 even made more power, over the thin stuff
But in that case it showed it was the right oil for that motor.

[img]https://i234.photobucket.com/albums/ee87/fast340six/sig%20pics/2840886-340SIX-1.jpg[/img]
VP of the MPM in New Orleans
73 Dart Sport 340/ 70 challenger vert. That may still get built, If I live long enough