Ive read to use the PG7 (which is a 88-89 5spd Integra ecu, if Im not mistaken) its not necessary, but recommended because of the fuel mapping and what not.. ef_case, you revved to 11? wtf? never over rev a ZC btw, the reason most ppl blow zcs up is because they tend to rev it too high, I believe for the dohc zc the redline is 7200.. it wont matter what the ecus redline is, go by the motor..