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my '74 390 is having issues, when i go from idle to putting my foot on the floor.
it'll sputter and shut off, or i have to let off and let the ignition catch up.
got no idea what to do, help would be greatly appreciated.
Does this happen while driving, parked or both? How is the idle and have you put a timing lite on it? I have a similar problem with mine but I think mine is fuel issue.
I think I've got similar issues: What type of ignition system do you have in it? Carbs? I'm putting in an HEI system. If you can wait a week or so (waiting for parts) I can keep you posted.
Look at 76bigblocks post here "backfiring through the carb" This may shed some lite on your problem. I'm guessing you also have a fuel issue going on. JMO.
what he's talking about in that post is exactly what my truck is doing.
but they think it could be a flat knuckle on the camshaft,
i have a brand new one that my dad bought for his 390 that he never used and gave to me if i needed it.
if it comes to swapping it ive got a set of lifters too. but i dont want to have to do that.