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I don't believe the fuel pressure is excessive- I'm running a carter mechanical pump (one of the ones that bolt together), but again not sure of psi. I checked the rod plungers/springs, they're pulled down at an idle. I gapped a new set of plugs .050 & installed them- it actually seems to be a little better, odor/smoke wise. And a bit snappier when I blip the throttle. Only concern is they are rn 14 yc plugs, and I don't want to run too hot. I'm going to go get a new set of 12s right now & try them,too.


Check your pressure. I have had fits like this when the fuel pump was stock. It is hard to tell without a gauge what psi you have. I had a carter pump on mine also that was too much pressure. I have had this problem on my 340 and several smallblock Chevrolet's. Now I just automatically put in a regulator. I hate fighting carb troubles and almost every time is is over pressure on a carter or edelbrock.