Putting the speedmaster cnc heads on my 11-1 408 shortblock . Will run a solid flat with edm lifters a super victor or the new trick flow intake and will be in a #2800 valiant w/4.10 spool , low gear 904 , 3500 turbo action and 1-5/8 x 1-3/4 ttiś , Looking hard at the mp .590 , lunati 582/582...