Anyone have any data of how a stock 250 family engine distributes fuel? Individual exhaust port mixture or exhaust temp. Would be interesting to see how close they are. Pricey... 6 egt probes or O2 sensors and a way to read them simultaneously laugh


What's the thread size on the air injection ports in the exhaust ports? Convenient hole for egt probes... I just found a bunch on ebay for less than $5 a piece!! This would be easy and cheap to try if you found matching threads. Then just read the probes with a multimeter, maybe fab a switch panel for quick switching between the 6 signals. Something to do before I toss the stock carb.... hmmm...

Last edited by 70Nova; 10/26/17 11:09 AM.