Well I went a different route .. after a little poking around I thought I’d give it a shot of sea foam , I dropped one can in the fuel tank and did a hot soak in the top end. After the hot soak 10 /15 min I fired it up and lots of sample for the first bit , drove it around and cleared it out ,, very noticeable difference,, idles smooth, no misfires ,and better pick up , I’m not a big additive fan by any means , but this stuff works it seems .. just thought I’d update this .. thanks guys for your help .. has anyone else done this and had similar results?