well i want to know if i port n polish my TB will i see any gains?? like in throttle response?? and what esle can i port n plolish lol other then the heads not doin that till i get it cammed..thanks guys

 

not really, you would get a better gain by switching to the car (ls3/ls7)throttle body

 

unless your porting it for a larger throttle body blade. home port n polish is really just a polish.

 

You will see a better gain by using a LS7 TB. 90mm. I am using one with a spacer by Vararam. Of course the most gains will be also gained with a custom tune.

 

I noticed slightly better throttle response by porting my TB, but if I had it to do again, Id just go with the LS7-90

 

Do u have a part number for that ls7 tb?? Will my cai still work for it?? Is it just straight plug in??

 

Don't have the part # handy, but there was a big discussion about it a while back on this gmt900 section. Do a search for 90 MM TB or ls7 TB and it has all the part numbers.

 

koo yeah ima research it right now... does anyone know any gains on it?

 

impossible. its in your head

 

Uh OK. Please don't tell me what I did or didn't feel. Don't do it if you want but I know what I felt. I'm not saying its a huge gain, but the throttle does feel a bit more responsive.

The NNBS 4.8's need a lot of help and it did help some.