If you just want something cheap and easy then I would say go with a 355, 383 or a 406 because like slow z said it will bolt right in and be reliable with a carb.....take mine for instance 355 iron eagle heads 750 carb with a little more tuning it will be a 11 sec. motor car then comes the spray
....all of it for under $3,000 and I can drive it anywhere...