I made 511whp on stock sleeves at 29.5lbs on my fully built d series reving to 9100. Your full of shit it can be done and has been done many times. Will it last? hmm who known depends on how you drive your car. If it sits like mine did and see's full boost twice in 3 months then nah you should be fine. If your out raping it every weekend and once or twice during the week then no your ass will crack a sleeve quick. Unfortunately i had a hole get into my wastegate line on pump gas and it grenaded. Here's my theory for you, Ive got a BALLER ass spoolin performance ramhorn manifold you can by for 480 and i have a back up z6 block with 9:1 srp pistons, scat rods, and acl race bearings with 0 miles for 700 ill sell. If you shooting for a little over 400 run a .60 cold side t3/t4 with a .63 hot side. If you want upper 400's to mid 500's use a gt30 with a 70 a/r cold side and a 71. hot, or a t3 60-1 with a 70 a/r and .63 hotside. That is what i use. I also have some more parts if your interested. No bullshit parts either.Originally Posted by green91




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