Well after lots thinking(see the smoke and not from my ride)/advice from members(Bob Wagner and others/posts)i decided to purchase Mach 4's when i ordered my Smarty. Today was the first chance i had to get them installed,after a 20 mile run home i can say that these run very well/smooth. With the smarty on #7,no smoke or very very little when rolling into the peddle,mash it and i get a good puff but the B1-2 cleans it up real well once spooled. The hottest temps i ran running up to about 85 MPH was 1200pre shifting gears(35-40 lbs of boost)--cruising at 70MPH --they were about 750. Sorry i don't have anymore info right now,but shifting,driving,and trying to read my guages/eyes on the road at the same time in building traffic with all that power was a bit difficult for now--more to come later. Power seems like i added another Edge EZ to my ride compared to the old Mach 1. 5's,they idle at 300pre. Just want to say Thankyou to Bob/Marco/Don M(F1) and other who aided me in my many Questions/Fencesitting etc. Later---DW



