Thank you for the assist.
I have had Mitch right here holding my hands through every step. Not literally but on my phone guiding me step by step through his supurb instructional videos. From the emission and cat delete to the intake vacuum ports plug and plate, installing head, timing belt, adj valves, installing carb, timing and adj carb. That's why I'm so stumped.
I did it exactly as shown and for a long time, everything was perfect.
So, to your questions.
#1 Yes, I sanded those plates and the manifold very well to ensure a smooth surface and flat fit. Per instructional video
#3 yes, I used that exact bottle of permaflx form a gasket.
#2, warm up, tune, recheck retune carb to lean best idle. For me that is 1 3/4. Idle screw just under 1.5 after contact. Throttle tension and travel good, and so on.
It just slowly started acting up a couple/few weeks back. Power slowly dropped and mileage went south. I haven't been able to work on it everyday. I will switch over to non-ethenol, I found a store that sells it.
On my way to church tonight i thought,
Maybe something had come loose. I know the vacuum lines are all connected and good but maybe the intake manifold or the adapter plate was not as snug as it should have been and started leaking.
I'm going to have to go back and double check all that. Maybe pull the carb one more time and pull, check reinstall and reseal adapter plates. Check intake manifold nuts.
I am thinking vacuum leak now, but where is this little bugger? I hate gremlins in the system.
Just had another thought. I have an automatic transmission that is hooked into vacuum. Let me unhook that and plug it and see if it's leaking through that.