Proline Powerstrokes.
I just won [link=http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5989700440&rd=1&sspage name=STRK%3AMEBI%3AIT&rd=1]THIS[/link] on eBay. Is $66 NIB a decent price?
What hardware will I need to make them fit the MGT? And how is the spring rate? Will I need heavier springs?