Gaining 20 to 30 over stock is a bitch.... Many others (including myself) have spent a TON on these engines to get more power and it's simply not there to be had. For the most part it comes down to the head, it simply does not flow well enough to make anny major power without forced induction or NOS.
A 1JZ swap is not a straight swap. If you don't have a garage and another car to get you by forget it. A 7M-GTE swap can be accomplished by a knowledgeable person in a weekend for a newbie perhaps a week.
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