Dirtywagen
New member
- Location
- Cincinnati
Oh man, it's night and day difference. With the JB4 the 12 came to life but it still ran out of steam higher end. Now the 20 just keeps pulling and pulling way harder. I'll do another pull in the next couple of days and see what it's doing in paper.@Dirtywagen even though you're just getting started fine tuning the IS20 can you tell a noticeable gain from the IS12?