I got the new carbs yesterday and installed them last night. Relocated all fuel line further away from the block to keep it cooler. My existing runs were just above the intake and exhaust ports. It is now about 5" above that at carb level and runs across the engine bay near the rear. Installed a 1-4psi fuel regulator as i have got lots of recommendations to do from here and other forums. Will try setting it at 2.5-3 psi for the first try.
Should have it running later today. I will post up what happens.
Think that the ignition system not working correct in terms of not enough voltage or not sparking right can cause this? Weak spark possibly?