Everybody is always looking for performance pieces for the 300 and 340. Kinda pricey, but saw this set on ebay. Designed for all the 215/rover based heads, and will work great on 300, 340, with simple jet and tube changes. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7976306654&category=36474 Rick(wrench)
