Lowering boost. Any tricks to installing a new pulley

[stephenpen]

I'm changing my top pulley from a 23 to a 24 hoping to lower my boost a little.
Do I need to heat the pulley before installing it or can I just slap it on. I dont want it coming off and making a mess.
I also added a temp gauge to the mpi oil tank to see how hot the oil gets.

 

[yooper1]

Go on there web site and read how to do it, there is a trick with the Allen bolts. Mark your pulley alignment too. When you put it on and tighten the Allen bolts it will move the pulley in about little more the 1/8 inch. Do NOT remove the bolt in the supercharge.

 

[stephenpen]

Go on there web site and read how to do it, there is a trick with the Allen bolts. Mark your pulley alignment too. When you put it on and tighten the Allen bolts it will move the pulley in about little more the 1/8 inch. Do NOT remove the bolt in the supercharge.

My pulley is an older steel one. Does that make a difference for the installation.
I had a hard time aligning the pulleys. The pulley moves while you tighten the set screws.
It sounds like I have to do it again.

 

[stephenpen]

I forget to ask about belt lenghts. . I had to remove the tensioner and top pulley, then slide the belt over it then and slide the pulley on.
Something is not right. With 26-23 I could get the belt off without doing all this. It was tight but it was possible.
Are there different belts lengths