This carb has 2 floats, left and right, and they are brass. The secondaries operate on jets only... the metering rods affect only the primary curcuit. I also have an Air/Fuel ratio monitor to help with tuning; seems to run better a little on the rich side. Doing this little test with seconbdaries disconnected really helped me dial in the primaries independantly. Brilliant Idea.

As far as the fuel system... it is all new from the tank forward including a new sock filter in the tank (it is the stock tank but I re-plumbed the inlet, return and vent), Mallory Comp140 pump, and Mallory return style regulator. All the lines are 3/8" including the return and are new except for a length of 3/8" hardline running the length of the chassis from the tank to the pump. I didn't think that this engine would warant 1/2" lines. In setting up the fuel system, I just plugged the line to the carb and let the fuel circulate through the return and adjusted the pressure to see what kind of range there was. I ended up being able to adjust the reg. from 3lbs. up to over 12lbs of pressure.

I think my next step will be to adjust the floats and drill out the seats a little. Edlebrock's "high flow" needle and seat kit is basicly the same needles in a .110 seat. A 7/64 drill bit is .1094... should have the same affect without buying new parts. Probably a little more fuel pressure too... but I will make one adjustment at a time of course.