as many swaps as the shops around here seem to be doing i would check with them. i would sell you my d15 dpfi but i can't take it out yet, i have to finish the rebuild that is going in there. check with tk or kj over at zmr, sometimes the motors they swap aren't all blown. also check with velocity resources, it's a hell of a ride, but they seem to get good engines in and know where to find them. also check boards for the scca, some of their classes have to run stock engines. maybe some of their boards have engines listed. good luck. if i hear of anything, i'll contact you.
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if you can only race me in a straight line then whats the point 
...91 SMF SCCA
http://www.flickr.com/photos/8341770@N07/5601083432/http://www.flickr.com/photos/8341770@N07/5601083432/ by http://www.flickr.com/people/8341770@N07/, on Flickr
I see people out there spending money on the car to improve it … If you spend half that effort just working on your driving skills, making you and the car work together as a team, then you’ll go faster – period. To make the car go a second faster on the track takes a lot more energy and money than making yourself drive it one second faster.
– the late Tom Thrash SCCA Solo E Production