Cryo wont help.. I cracked 3 pistons on just a tune, truck ran 7.9's in the 1/8th on stock inj. , turbo cp3 so it must have been in the 550rwhp range.. Instead of buying dual fuelers why not buy manley rods like paint said? Throw some lb7 pistons and u can make over 650 safely, it's worth saving up for.