It would be a little heavy on air.. Like, if you were building some racing engine going 9,000 rpms it would be great... Otherwise, it would run and go alright probably, but you'd about HAVE TO choke it to get it fired, then when you are driving around, your acceleration will not be as snappy as a 6 horse carb would be..
The biggest thing is going to be how all of the (parts) work with your OHV engine...
I WANT TO SAY the OHV engines governor, PULLS the throttle open on the carb, as to where MOST of them PUSH open.. SO ya have to put the throttle shaft from the OHV carb, into the flathead body as there is no hole for the rod to plug into...
Your throttle shaft is a different size, and you couldn't do that in this case.. If it won't plug on.. you'd have to engineer a way, or go without a governor..
So you want to look at your motor, see how the carb is rigged to the governor system, and see if THIS CARBs throttle shaft will plug and play correctly..
As long as the throttle shaft will work for you, the fuel line will not hit your exhaust, and choke arm won't hit anything, the carb WILL BOLT ON to your intake manifold, and basically run the engine...
When I build them, I am pretty sure I use the HS style 5-7 horse carb body, that has the elbow fuel inlet, then the choke arm goes out the other side... Put the throttle shaft from the OHV carb into that carb with the elbow fuel inlet, and a choke arm that goes out the left side...
:laugh: But thats my recollections and haven't built one in a while.. :doah: