Thanks for all the good reply's.
I am in Riverside and wanted the 165 and the 167.5 because my system is stock but they were no available.
The float level is right on perfect as per the clymers.
I do have the stock needle in the carb
and I'm running the stock air cleaner.
I took it for a spin with the 170 and the PMS
set at 3 turns, it ran better than it did before but still has a very slight hesitation when like in 5th a 65 and do WOT
. It's only for a 1 second then picks right up.
I got back home,took off the air cleaner and fired it up.
I turned the PMS in to 1.5 turns out and the idle picked up so I continued to turn it in waiting for the idle to stumble- it never did, even when the PMS is all the way in.
I'm thinking this means I have an vacuum leak in the intake system
but I'm not sure that is the correct assumption.
Well I'm going to put PMS at 2 turns and run it 100 miles and see what my mileage is.
The thing is - it runs good, I mean the idle is great, does not pop back thru the carb ever and does not ever pop back thru the exhaust either.
If the mileage is decent I should probably just leave it be before I screw it up