Originally Posted by
velociabstract
It's a direct bolt in. Same electrical and hose connections. I wasn't running lean but wanted to run stacked. I have a 178 crank pulley and installed my 65 mm Code3. It was so lean I never got to redline and took it off. With the Pierburg and putting the Code3 back on the AFR's came down to 13 up top with the same tune. It helps is all I can say.
Les
Until you get some bigger injectors this will continue to be a problem for just about everyone that does a pulley upgrade. The volume and the pressure will do little to solve this if your injectors are maxed out. If you look at some of my older videos and compare then to my last on you will see what a difference the new injectors made. Granted I am still .4ish higher than I would like at WOT but we have only tuned it once on the dyno. The next tune we will fatten it up a tad and we should have some pretty good AFR's