batman wrote on 06/14/16 at 21:59:15:You said it yourself! "I'm only trying to get back the same performance I had before I put on the cone filter" duh! reverse is also a gear!AS JOG said if something you did doesn't work you need to go back and undo it.I ran into this myself I had my bike running nice with a Harley pipe and decided to try drilling a 3/8 hole in the baffle it ran horribly ,I could have tried rejetting but that wouldn't make the thing much faster so I changed it back. If your looking for speed then you have to invest in larger piston ,cam ,exhaust,etc. so you have to ask yourself is $2000 worth of parts and labor worth it to go ten miles an hour faster?For me the answer was no, it was more important that it run smoothly and reliably.
Lectron 38mm carb and kit, head "blueprinted" and ported, Stage 3 cam shaft, Varsies' cam chain tensioner and head plug, new cam chain, Wiseco 10.5 compression ratio (94mm) piston, Bartlett HD clutch, custom 1.75" header and Dyna muffler, 25 tooth Kawasaki front pulley.. Total (including shop to get jug honed ) $2,200.00.

Gain = 40% + Horsepower and torque PLUS increase of useable RPM to a 7,500/ 8,000 RPM redline.... NO loss in smoothness or reliability at MY touring speeds (@ 5th gear)3,600RPM (60 MPH) to 5,000RPM (80 MPH 4 passing).

When you compare that to the cost of an 883 Sportster. Well