SX/SXi/SXi Pro 650sx upgrade to 38mm carb question.

[fj40cody]

i know i may be beating a dead horse but i cant find any info.
1. I want to replace a stock 28mm carb with a stock 38mm carb that came off a 750ss couch. will i need a different manifold?
2. Will the dual carb manifold from the 750ss work on my 650sx block.
3. Would i gain any thing from the dual carb set up. 650 has been board out. (not sure how much though. also going to extend exhaust pipe by 4 inchs.)

 

[fj40cody]

ok should i run dual 38s or a single 38

 

[WFO Speedracer]

You can just enlarge the intake to accommodate the larger carb, all Kehin bolt patterns are the same

 

[fj40cody]

thats good to know. i think ill just go with the single carb to make it easy. after all how much more power can i really get out of a 650

 

[WFO Speedracer]

thats good to know. i think ill just go with the single carb to make it easy. after all how much more power can i really get out of a 650

A lot if you know what you are doing.