I agree with the posts above, also consider, every engine builder has had an unhappy customer (don't let one or two internet rants stop you from buying Builder "x"'s motor). I've got a Roush 427, I've had an
oil leak...no big deal, my new Dodge did too...small
sh!t happens. Do some research, check the builder to see what parts are not included (carb, distr., pullies, ect) and do the math to see what you can afford.