[2LZ]

Since the body and interior are "as good as they're gonna get" at this point, I moved to the engine compartment. Been replacing all the rubber grommets and accordion gizzy for the accelerator at the firewall. Plus, of course, a top of motor tear down including carbs, yadda yadda.
.All the bearings in the fan, alternator and idler pulley are in excellent shape and silent. Good news there.
According to Fitch (look him up), by dumping the stock air cleaner and going to four separate units, plus re-canoider the PCV system, along with advancing the timing by 3', it's worth 15hp. I'll take it. Sounds just like a China bike mod!
In addition, since it's a quad carb setup, I bought some exhaust adapters and Dremeled them to custom fit. VIOLA! Instant velocity stacks! The real reason for this is to tap the PCV into one of the primary carbs, but what's the point of synching all four carbs if only one has a stack? The way I see it, anything that gets the airflow straighter to the venturi cluster is a good thing.