I've been working on my best friends 87.
Backfires through the TB
History: replaced engine with known running engine from 89 XJ. Original engine had a bad head. That's a whole other story.
New cap, rotor, wires and fuel pump.
Refreshed and added grounds throughout.
Volvo fuel injectors.
Verified TPS settings
Verified TDC and distributor clocking.
Will replace CPS and drill 5/16 hole for adjustment.
Anything I've missed out additional things to consider?
Still has C101 but I have the wiring harness from the 89 to put in to eliminate the C101