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Long time lurker, first time poster. I'm working on a kz1100 build with my brother and dad and need a little guidence. We are putting an MTC 1327 big block 10:1 compression, stage 2 ported J head (from Pitstop Performance), 4 into 1 exhaust, K435 cams, and Mikuni RS36 Flatslides.

Collectively building it isnt an issue, but I have no clue where to start on carb jetting. Does anyone have suggestions/experience?

Hello and welcome Prangr

I think you have to up some pics of your project bike and tuning parts before you get an answer to your question.
We all love bike pics!!!

Well there isn't much for pictures since it's completely torn down.
I saw the Mikuni tuning guide since that was the first thing I searched for. But since the engine will be so far from stock I didn't think the guide would be accurate. I know I need to go up on all jet sizes and I'd rather run a little rich vs a little lean.
Any way, here is the lone pic so far. Ignore the bars welded to the seat, this was a garage sale find.