im trying to buy a throttle body, i already have, jba headers, magnaflow exhaust, tb spacer, airaid CAI, msd sparkplugs wires, FASTFLASH programmer and descreneed MAF....
ive seen 2 options, the BBK 80MM throttle body and the FAST 90MM throttle body...
http://cgi.ebay.com/ebaymotors/FAST-...spagenameZWDVW

or

http://cgi.ebay.com/ebaymotors/BBK-0...spagenameZWDVW

witch is the best? do i need to make some other upgrades to get them installed? thanks...

 

Bigger is better if you want to build your truck as fast as possible... But buy from Summit Racing. Cheaper and they will give you the best customer service as compared to eBay...

Some say it will be better to get a 85 compared to the 90, but I'm not convinced of that. Vera Ram makes an airfoil type thing that gives you 10 hp. It just goes in front of the TB and smoothes out the incoming air.

You might want to check how large the opening in your spacer is, and if the blade from the larger throttle body will clear...