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Advanced Induction is by far the best CNC option for stock heads IMO. I sent off a set of 243s to them. It was like $1295 with new springs assembled. I gained 55rwhp and 36lb/ft tq from them. I have a few threads on them and the dyno/track results as well.
Agreed. You really do get what you pay for in this case. I'm pretty excited to send off my 243's next week.