anyone knows who does them?

or can you buy one? any info or sites would be great

 

up.

 

Never heard of them. Maybe you can dremel out your own? I wouldn't. 350s with bolt-ons tend to run lean anyway without a reflash. There probably isn't much room for improvement unless you've got some top end internal work done.

 

Porting your throttle body at your power level will make no difference whatsoever. Spend your money else where

 

www.proflowdesign.com
www.wrptechnology.com

Both do it.
Is it worth it?
Unless you're looking to squeeze that last 1/2 a horsepower by boring it out another 2mm, probably not.

 

ya ya i know. thats what i was thinking too. just shaving out a mm wouldnt do ****.

but that Z seemed pretty quick and i saw that he had done that to his throttle body. and i noticed no really ever does that. so i thought it was something im missing out. but im not. thxx.

sorry if this is a run on, im kinda ****ed up.

 

^ and that was my 1,000th post.

 

I used Proflow Design to port mine.

It only made about 2hp difference. And that could fall under error of the dyno from pull to pull.

Later
Todd

 

What is the stock T/B size?

 

70mm.....? yea, sounds right

Its slightly a bottleneck since I think the tube is 72mm but nothing drastic