Need help tuning Quickfuel carb
if it still ends up missing at 2500rpm, which is when the main curcuit in your carb comes in, but also when your mech advance and vacuum advance are all working too...you should try driving it with the vacuum advance disconnected.
if that fixes your miss, then you need to look at rotating the reluctor in the dist. i've never looked at a firecore dist. so i'm not sure if it's the same as a factory design...
I’m not seeing the miss with the timing light anymore at 2500.
But I am still hearing one, before pulling the distributor out I was getting a miss at 2500 with the timing light on every cylinder.
Then I dis-connected the vacuum advance and plugged it off and wasn’t seeing the miss anymore with the light.
So I pulled the distributor and it looked like the pick up coil post to reluctor air gap was too tight, causing the reluctor to hit the pick up coil post on certain teeth.
So I widened the air-gap to .009 to .010 when it was around .007-.008.
Re-installed distributor and set timing and checked all cylinders with the light again and didn’t see the miss anymore on the light.
But since I’m still hearing one that indicates it’s fuel causing the miss I’m hearing now.
Before i think it was a combination of the distributor and fuel, and now I’m hoping it’s jut fuel and increasing the main jet will eliminate it.
I’ll let you guys know when I fire up here in a few after swapping the jets.
I’m in the middle of taking the carb apart now to swap jets.
