Yes! Didn't even bother with my Mighty Demon! Still can't believe the finished jetting of 82/81 with a pri. PV! The 1000 Holley was from Lenny's Max Wedge dual quad set-up that was at the shop,which was a 4150 model! I need to find out what jetting is in it,that it gave us a 7.99 A/F ratio,but still matched the best output of your 850 Holley!???