I have a power v to TPS of 4.87V and a smooth power drop on ref voltage aka green wire even when it is dropping out. Seems to be working just fine.

 

Anyone think it might be the cats?

 

I guess I have stumped everyone! I fixed it! Who wants to know the answer?

Well I am not going to wait for any responses. I will preface this with what I said about a week ago, " this is going to be something simple".

Turns out you can put the distributor cap on and think it is locked in the tabs, hell you can even manage to clip it down and think you set the timing to 5 degrees btdc. You would be WRONG!!

I bought a new cap and rotor, installed them and found the actual securing tabs. Started and heard a bunch of backfiring in the intake. Grabbed my trusty new timing light and checked timing, which I thought was set at 5 degrees btdc, turns out it was locked in at 12 degrees atdc. This plus the cap not actually secured to the distributor correctly caused my concern.

I will be a man and own up to the mistake!

At least I did not throw a bunch of parts at it.

 

My last duh moment was forgetting to check the spark plug gap before installing. The too large of a gap made for horrible missing under load. I ended up having a shop figure that one out for me.

Awesome that you figured it out. I run my dizzy at 10* btdc - more pep off the line at this altitude.

 

I was going to ask if anyone was running more advance. Seems to really smooth out more with just a few more degrees.

 

Yeah, it is amazing what a timing error can do to you!

 

"timing is everything"