tall deck
we run a 476 tall deck in our s/pro rail-8.32 @160 on pump gas,reliable as a rock. first check #2 cylinder wall next to the fuel pump boss,this normaly is the thinnest spot in the block,if it is over .140" block fill to the water pump holes and bore it .100" over,clearance the pan rails,deflash the block and throw arp studs at it,top and bottom.we run scat 4" crank,rods and srp 10.5:1 pistons,all forged,and brodix bb2 extra heads,de flash them ourself's.if you want to rev use at least 280/288 dur on the cam at .700+ lift,all roller,don't go cheap here,and springs with at least 260 seat/660 on the nose pressure.with a good intake and at least a 950cfm air flow;track tune,you will make around 700 hoss.we use msd 7al spark,42 degees early morning backing to 39 deg in the heat of the day. one last tip,all truck blocks have drilled oil gallery plugs behind the cam gear,this sqirts oil onto the cam chain using the lifter oil pressure.replace the right hand one with a solid 3/8 npt plug,you are losing pressure in that gallery anyway with the oil going around the distributer housing,the cam chain gets enough oil from the left hand jet and you won't be starving #2,4 valve gear on start up.If you want hear our motor go youtube.com/linda neal dragster,and turn up the volume !!