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i have a bone stock head and block, intake manfold, custom built upgraded transmission with 4000 rpm stall, trany cooler installed, just replaced the timing belt with p.e kevlar, ati crank pulley, ur pulleys, phr 67 stage 2 complete single turbo system updrade, complete fuel system, titan fuel pump hager dual walbro 255s, rail with 750cc injectors aeromotive fpr running with an apexi s-afcII, hks speed cut, fuel cut, greddy type s controller, super dragger exhaust, hks gt b.o.v upgraded trd lsd, engine breather kit installed wondering if i need an oil cooler at this point, i'm thinking i shouldn't hold off on gettin one???

but i'm leaning toward 550hp reliable power on stock engine well with this list of upgrades what would you guys recommend i tune this car to without blowing the engine
 

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Since you have fuel upgraded, the stock motor can probably take anything that turbo can throw at it with high octane fuel. The stock motor record is alot higher that 550 hp.
 
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