Installed it the other day and love it so far so good. the pcv and vac lines are reversed compared to edelbrock no problems other than that warmed her up checked with vac gauge little rich, reset, all good. The secondary flaps are adjustable which is nice, they were coming in a little early so I put a little tension on the spring and perfect. Well now just to see how gas mileage is when winter finally leaves us alone

 

 

Just remember that Demons are wet flow rated, so they're actually a little bigger than a Holley of the same size

750 Mighty Demon here and really love it over the old 750DP Holley it replaced

Let us know when you get it out and how it does.