Got an 87 mazda rx7, all aluminum gen 4, 5.3 LS based truck motor with only 60 1/8th mile passes, btr stg 3 truck cam, massaged heads and throttle body, decapped injectors, ARP head & rod bolts, rings gapped for NOS, glide with transbrake, custom 4link with 8.8 and 4.30 gear... been running 6.8x’s with moderate tune—-cash or trade for good dragster...