Finally acquired a super rare NHRA piece I've been chasing for a while: an original NHRA Tech Manual, from Maple Grove Raceway in Mohnton, PA! It's chocked full of NHRA tech bulletins, original NHRA blueprint specs for each make/model, original fliers & payout info from Maple Grove, and lots, lots more, all from 1950-1980...well worth the wait, and a great bookend to the NHRA class guide I got a while back...
