What's the best way to do a good degreasing and cleaning on an M body engine bay? Pressure washer and degreaser? Anything to watch out for? I'm concerned because I still have the lean burn computer for now.
Pressure washer with degreaser is the quickest most thorough way but i never clean my engine unless I really need to.
Stay away from wiring harnesses too because the wrap likes to get loose with age and isn't water tight.
I'd hold off until you're doing the intake swap.