And the education continues. I did about 4 or 5 idle plug chops today and noticed that I was getting different results at times without having made any adjustments to the IMS screws. Also noticed (actually the other night) that the rpm was fluctuating about 300rpms at times. I started wondering about vacuum leaks today but only focused on the areas between the motor and the carbs. I used new o rings on the intake manifolds and I don't think the larger rubber boots (although really hardened) were leaking. I'm ashamed to admit this publicly but...if it will help someone else out down the road...I KNEW there were tears in the boots between the carbs and the air box. In my head I just didn't think they would be an issue but it makes sense now I guess. I assume they are allowing air in that is not at all controlled?
I will do it right and order new boots for both sides from 4 into 1 as well as some new clamps for both. Then we'll see what plug 4 looks like. There is actually a large tear on the number 4 boot that I.......ummmmmm......might have made with a screwdriver when putting them back on after the top end rebuild. Laugh if you must. I'm still learning. I won't even post a picture of that, although, several of you have now seen it. It's not pretty.
