who runs 13sec to 12.80 in the 1/4

GTXperience said

I missed that part. As Adam suggested, try a little scraping and see if you can come up with some ID #s.

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But if the pistons are the ones in the picture, it won't matter much. They are obviously dished. You can slap a blower on there with forged, dished pistons but then your costs will skyrocket.