2056 still working out the bugs Options

[jmargush]

I am sorting out my recently built 2056 specs below:
2.0 Heads were done by Len Hoffman
CR 8.56:1
Full Raby valve train kit
Stock L-jet throttle body, air cleaner, and intake runners
stock 2.0 heat exchangers
pertronix ignition


It has a miss under hard acceleration.
All the vacuum lines and oil cap gaskets are new and I can't seem to find a leak any where.
So I decided to recheck the timing.
Pulled vac lines off the vacuum diaphragm and plugged, set idle to 800 rpm
timing was a little more advanced than it should be but not dramatically, but I did reset to factory setting.

Drove it and it is even worse than before.

Would the new engine combo warrant a different timing?

Fuel filter is new but my next step is to check fuel pressures and injectors.

Anything else I should be looking for?

[jmargush]

Stock heat exchangers with a Thunderbird exhaust which is similar to Bursch as far as how the plumbing runs.

Any pictures of your O2 set ups?

I made a little progress this evening

Vacuum diaphragm on dizzy was bad on the retard side thus the not coming down to idle.

Didn't get a chance to run it on the road as it was raining but I did shave the grommet for the wires running form the pertronix as they were mighty close to the plate that rotates for advance, just incase that was making the plate hang up on advance.

Hopefully I will get a chance to try it tomorrow.