Cars today are not a simple engine swap like they were 30 years ago. If you swap the engine for a totally differnt one, you'll need to swap the PCM and possiblly the wiring.
The injector O ring needs a little bit of oil to seat correctly or you could tear the ring forcing it into place. I used 10w30, just take a drop and run your finger all around the ring. It also makes them easier to remove if that time ever comes and protects the O ring as well.
Oil weight doesn't matter. I just used what I had in the garage. DO NOT USE WD-40 OR ANYTHING LIKE THAT, it will destory the ring
33% ALEROMOD OWNER!!
2000 Olds Alero 3400 SFI 14.53 @ 94.93
1985 Olds Delta 88 307 SBO 17.96 @ 76.99
2007 Volvo V50 T5 6M 15.782 @ 89.12