Dan,
Like Bill said, a 1" spacer would almost surely solve the fuel boiling problem. I don't know how much effort you want to put into this, but if
you want to try to get the most horsepower out of the hood clearance you have available, another approach would be to put in the lowest height riser that will sove the problem - I use a 1/2" wooden spacer purchased from AED
(they only show 1" on the web site, but they do have 1/2"-call them)
http://www.aedperformance.com/Accessories.htm
Now add 1/2" height to your air filter. K&N will custom cut their filters in 1/2" increments to any height you want. The spacer will add hp/torque at the low end and the increased air flow will from the larger filter will let the engine breathe better at higher rpms and add hp up top. HAVE FUN!