figuring out head code?...

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Hot mess
ok so heres my delema...

Im building a LS Vtec and im tryin to figure out what kind of distributor to purchase. and im gonna need to know what wiring harness jumpers im gonna need to put in my hatch...

its a PR3-2 casting and the first 2 numbers on the 4th exhaust port say 9/0 so im guessing 1990?

Please help and tell me if its obd1 obd2 or what the hell it is.. .thanks in advance!


a b-series head is a b-series head.
its the electronics /im that are different.

get the distributor for a b16 that matches your ecu.