My apologies, I thought the topic was SBC 24x '0411. It appears the thread has wondered to the SBC 4x '0411?

I have experience with the SBC 4x '0411 conversion. I use the FACTORY 2002 Express Van L31 SBC 4x '0411 wiring diagrams, FACTORY L31 Cam / Crank sensors and the FACTORY Ignition Coil / Module on the systems I've worked with. It's a good parts combination / foundation to use for the SBC 4x '0411 conversion. The SBC 4x "0411 initial cam / crank alignment MUST BE 100% "SPOT ON", or "HEADACHES" will result. I use the 2002 Express Van Flash, OS 12212156 with the SBC 4x '0411 conversion.

My daily driver is a 1999 S10 / upgraded with a Stock L31 / using the EFI Connection 24x crank trigger system. I'm using the FACTORY 2002 LM7 wiring diagram, modified for the SBC 24x system. I often use my daily driver to "Test" an '0411 PCM. When testing an '0411, I use the same flash the daily driver '0411 has with the CASE disabled in the "Test" flash. I haven't noticed any drive-ability issues with the CASE disabled flash. I'm using a "EXTENSIVELY" modified Drive by Cable LM7 5.3 liter OS 12212156 Flash for my SBC 24x conversion.

dave w