Jim Crilly had one on his SPF at the Fling last year, I rode with him and the forward bar was no problem. I have the forward bar on my 289 and it really isn't a problem, ac tually kind of nice for both driver and passenger sort of a grab handle to get out of the car rather than the natural inclination to "grab" the windshield frame which is a no-no unless you like to replace glass.
I think there is a picture or two around of Jim's car w/ his "lady"
