Ha, yes slow! But actually I had been researching and contemplating getting a cam and all the ls3 conversion stuff. But I would much rather go the upgraded bpulley route , and meth had crossed my mind, was talking to the R&D team at AEM a while back about their meth kit.

Thanks for the help!

contact Alky control....Great Kit and I went with trunk mount.

I haven't posted in awhile, but I came across this since I'm looking to pulley down myself and I thought I'd chime in...

I was trying so hard to avoid the cam route, but the L99 AFM lifters are garbage. They tap and made all kinds of noise, so when I did my blower, I put the whole project on hold and did the LS3 conversion. I went with GMs LS9 Cam (which I'm already bored with), edelbrocks 60# injectors, Zl1 fuel pump, and 3.5in pulley. I put down 525hp on a conservative tune and had plenty of fuel. My boost spiked to 11psi but it was consistently around 7.5 psi until the end of the power band. My tuner told me that's normal and all the eforces surge like that at the end of power band.

As a side note- IF you have the eforce already and if you decide to do a cam, you will HAVE to change your valley plate to the eforce ls3 one. It was a PITA to track one down and find someone willing to sell me just the plate. I paid around $300 for it. Price I paid for changing my mind AFTER I had already bought the blower.

Good luck to ya!

Don't confuse boost pressure with airflow. You can have 20 PSI of "boost" blowing into a closed pipe and have zero airflow. What makes more HP is more airflow and the additional fuel to match. A bigger cam usually reduces measured boost because it reduces airflow *restrictions* through the engine. Log the MAF readings before and after changing pulleys. It's possible to put on a smaller s/c pulley, see more boost, but very little increase in airflow because the E-Force port runners/heads/cam/exhaust/ may already be maxed out.