My Jesels were 1600, manley nextec springs are 600, and heads are 1200 new today. Plus you have to buy that same stuff even on a conventional head. I can post my receipts. And you dont have to go that exotic on the springs or even the rockers and probably save a grand which would put a long way on porting. You don’t know what your talking about. I own a 9 second W2 car right now thats 3250 with me in it and its 372”. There are a lot of 9 second W2 full bodied street cars out there. I do port my own heads so thats where I am off in my numbers and most porters wont do iron anymore. But there is a super stock guy near me that will do a set all out for 1k. And he is good. Probably an anomaly.