MGA performance improvement

["McCarroll Edwin" <emccarroll@mco.edu>]

Any opinions or advice on the following approaches to improving the 
acceleration/overall response for the MGA:
 1. Install Judson suoercharger (how much should be paid for one?)
 2. Replace current sponge filters with K&Ns .   Are there K&Ns that will 
insert easily into the holders or do you reolace the two filter units entirely?
3. Re-do the head with step grinds and go to bigger valves?
   Obviously I'm not a super mechanic and any help will be appreciated.