I picked up two 7427 PCMs yesterday. I have been looking around in TPRT at some 7427 bins, and yes there is quite a few more things in the 7427!!

Speaking of 7427 PCMs, I tried to carefully remove the PROMs from the MEMCALs of these PCMs..... While I did get the original PROMs removed, the "connector bed" on the MEMCAL itself where it was soldered (not sure what it's called??) that the pins of the PROM attach to got pretty mangled... I found this on thing on Moates and it looks as if it just bypasses the stock PROM, and retains the knock circuitry. http://www.moates.net/g1-memory-adapter-tpi-etc.html But can someone confirm that this is indeed what I need to get going with the 7427 PCM??? I tried to remove the PROM very carefully using this as a guide http://www.gearhead-efi.com/Fuel-Inj...r-27SF512-Chip but I ended up making quite a mess like I said. I would try to upload some pics of my MEMCAL with the stock PROM removed but I'm not sure if the pic would show enough detail?

I wish I would have found out about this G1 adapter before I removed the stock PROMs from these MEMCALs, but I guess that it's kind of a moot point since I planned on recalibrating the BIN anyways right???