I really don't like the 140 reading, but if it is relatively even across the cylinders..might be stuck with it for now
Definitely shoot the water under the manifold too...you never know.
I have had the gasket between the baseplate and the main body of the carb fail, and it actually had an internal vacuum leak to
one of the barrels of the carb, and really ran strange. I couldn't have found it if my life depended on it, no testing showed
anything until I took apart the carb and there it was.
Questions
If you goose the throttle to 3 or 4000 rpm and let it come back to idle on it's own.....does it immediately snap back to idle rpm,
or does it slowly come down from the higher rpm point? If it comes down very quickly, it is probably not a vacuum leak and I'd start looking elsewhere.
Is TDC on the balancer 100% verified correct, by you personally (since you're tuning it)?
What kind of a timing light are you using?
Sorry if there's any redundancy and these things have already been mentioned
I'm with ya zippy...but read through if you have the time..its all been done, put a you tube video up yesterday with the garden hose all over the intake.
It does snap back to idle.
I did verify the dampener to zero on the tab. Twice.
Old school non dial back timing lights. 2 of them , verified they work with msd as I have two other big blocks in the garage with msd that time right.
I have had 5 carbs on here in the past few weeks, the one I bought for it has been off and on 4 times itself. And it leaves nice impressions on the new gaskets every time. I have also used 4 hole and open plastic spacers and one aluminum.
No worries about the redundancy..I'd rather have that and possibly a new idea lol.
I am going to go out and clean up my block ground and add another if I can with something around the garage real quick.
I should add for everyone watching..it does run pretty good once it gets out of its lump and hits about 3k or more with a load on it. Not great..but respectable. I'm betting the locked timing has something to with it.
