Festy wrote: I was initially planning on re-purposing my now-defunct distributor to trigger the window So what are you using to trigger the spark. My 165 uses a distributor reference pulse as a pseudo cam indicator and the ECU calculates the actual spark timing from that. Even so I am not sure how ...

I am in Canada so I am familiar with the 165. My original TPI setup came off an 87 firebird so it had a 1619825, a 165 with high speed ALDL. It has an external ESC (knock detector) and MAF. I explored doing an 808 conversion to get MAP but ended up opting for a 1227730. So you are triggering the HIP...

Great posts. Some questions for festy: What ECU are you using? Is the stock knock board internal or external? If I Understand thinks correctly, you are using a HIP9011 processor. What are you doing to get output with out a trigger signal (INT/~HOLD)? Does the analog signal follow the input signal (w...