Honestly if you want big power at a reasonable price buy 3-4 year old alcohol hemi parts. Most of it is billet, they don't damage them as often as fuel parts and the NHRA guys are always stepping up to the latest parts. Check out Insidetopalcohol.com. Lots of parts for sale. On the wedge side if someone would copy the FBS (Fred Brewer head) in a updated quality casting there's big power to be made there. Offer different intake port cc volume heads.