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  1. Hey everyone, My 87 'Rally Wagon' had recently started showing signs of HG failure (frothy coolant & coolant loss) so I pulled the engine and found that it was just my heads that were toast... so, I've decided to keep my low compression block (7.7:1) for a spare and I'm putting the old heads onto an XT block for fun(: the XT engine-(MPFI 9.5:1 comp) What I want to know about this is if there's anything other than the obvious dangers of running boost with high compression.. if anybody has built one of these and run it dependably for any amount of time, what did you do? What should I look out for? And what's the most common failure point of these? This is my test engine, and if I like it I'm going to build a fresh block, ported heads, ported turbo, and eventually a propane set-up Thanks everyone for any input, I'm not expecting anything more than a mass amout of power and eventually a big bang over time with this one haha(: but id like to delay the bang until I get it all running right
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