Hey Georgia Cuda, I'm just checking to see if you still need the thermoquad carb. listed here? My 340 I bought came with the carburetor has a 4-speed drilled crankshaft, so I'm pretty sure the numbers are correct. The only problem is it's at home and I am at college 5 hours away. If you let me know within the next two weeks, I should be heading home on Feb. 10th, so I could snap some photos for you (after I confirm the numbers) and let you decide if you'd want it.