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Rick, Thanks for the reply on the breather valve, can't wait to see the pics. Yea, the 800cc motor is a 2 stroke. I'll take some pics as soon as I can. The FI computer is a closed loop system using exhaust temp as the only feedback. O2 sensors get ruined by the oil in the 2 stroke exhaust. It's really just a timer that varies injector on time based on EGT. I was using 320cc/min saturation type injectors, and found I didn't have enough fuel, then found a mistake in the spreadsheet I used to calculate injector size. I have the same problem as you with the bikes, I only have about 7.14ms period so the injector on time must be less than 4ms. Finding saturation type injectors that can move 750cc/min was not possible, so I had RC engineering make me some peak and hold type (I should get them this week). I could have piggybacked 2 injectors per cyl. like you did, but making the injector manifold and fuel rail was a pain, and I didn't want to hack into that. I Had to re-design the drivers for the computer, but everything else remains the same. I batch fire all 3 injectors at the same time, future revs will have port timing and throttle position. I have a lean/rich adjustment on the steering, an injector on time display that I made, and a digatron EGT meter for on the fly tuning, in addition to boost and fuel pressure. I am blowing through the carbs which are good for 150 hp, with the FI in series before the carbs providing the extra 150 hp of fun. I've run up to 15 lbs on short blasts before I go too lean (ceramic coated pistons let me run close to the edge, but I melted 4 pistons early on before I went to FI). The new injectors should allow me to run wide open for as long as I want (I hope). sorry so long winded, Dave.