hi mate so you think if I only deck the block and run those pistons 10.3 should be ok , if I start to machine heads etc wont that cause dramas with push rods and manifolds or 15 thou should be ok you think if I can get around 10.5 id be happy but if you think 10.3 is going to make good power ill run with that I guess and going to run a cam around 240 ish i think and on a 110 lobe , 110 lobe will build up alittle more comp hey I read those xe serries comp cams are good for building up comp with the tight lobe centre a power range 0f 2500 to 5500 id be happy with just a fun street car , i have a 850 dp holley , strip dominator intake , 4 speed with 3.55 , those lunati cams do sound good but want a nice muscle car lump as well not looking for smooth idle , whats your thoughts on a cam choice mate knowing my combo or can I get a taller rod that works with these ross pistons and my forged 3.75 crank , you said since being rebuilt they wont be stock height