Just a note - for the cost of a hybird head + $800 one could get a 4200 vortec ($500 on ebay)- add race cams ($1200 - 1400),headers and an intake make 500HP all day long and not have the headache of trying to keep a hybird head sealed....
What would you estimate the total cost to be on this 500hp setup?
What would you estimate the cost to be if using a stock 4200 minus the smog stuff?
Do you need a tranny adapter to use an older transmission (t5 maybe)?
