What do you guys think of the speedmaster bare aluminum heads

they have a mixed review. Yeah, they are chinese castings as well. Some QA concerns but if you have them checked out by a good machine shop, you'll probably be alright. Don't expect huge flow numbers either. They are, from some of the flow numbers posted, essentially just an aluminum casting of a stock X head, maybe a tad better.

Hi mine flows better then a stock Edelbrock performer RPM head, they have a good 5 angle valve job.
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BooW