Re: P & IH & TB porting
 

This has been discussed before:
http://www.zr1netregistry.com/forum/...hlight=porting

Will you feel the difference? everday driving = no, winding up to redline = yes.
90-92 models have more to gain from porting. Other breathing mods will complement a port job.
Personally I think every ZR-1 should have a ported intake, headers and free flowing exhaust, these mods really bring the LT-5 to life.

Re: P & IH & TB porting
 

Bob,

I'm hoping to experience this sometime in the next couple of weeks.
Been a long road so far but doing it yourself sure gives you a crash course on the LT-5. I'm certain Lgaff would concur. There are several of us doing this mod nearby and having people like Lee, and =Jeff= helps. Not to mention Pete, Al, ccmano and Don Yoakem.

Re: P & IH & TB porting
 

I did mine. Allot of work to say the least, after doing one you realize that paying for it is worth the money in time alone let alone experience. You have to have many hours to kill to do it, & once you start only you are going to finish it unless your up for the humilation of carting it to a shop in pieces. But yes, you learn about LT5's and all the vacumm garbage, plenum & conections that all have to be reconnected or your right back in there. A great learning experience. Do all you can while it's apart, check all systems & clean it up....:D