Not Ranked
It seems to me that you have multiple problems with you install and setup--
First, you need to get control of the float settings and some needle and seats that will contro; your fuel level--start off by lowering the pressure to 3 lbs to until you get control of the inlet fuel problem
Second- if it runs better on hot days and worse on cold days you are probly way too lean
Third--which carb do you have on the front and which one on rear? The carbs set on the manifold backwards on these engines, do you have the linkages correct?
What caused the puddle of fuel on the manifold? An external fuel leak is courting disaster, more so if it is in your garage---
If you are using a liquid filled guage-most of them have a screw hole to vent the guage to atmospere so the pressure reading is balanced and correct.
8 to 9 pounds is way too much presure for carbs- 5 -6 is marginally possible to control if the needle/seat assy aren't too large
Generally a engine with a single 4v carb and center hung floats is more driveble than the side hung floats in moderate to hard turns because the floats will close off the fuel supply in the turns one way and hang open in the opposite turns
Jerry
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