But, if his base compression is 11-to-one, he's not going to be able to get it down to (the necessary) 9-to-one with the milled block... which is where he will need it to be if he should ultimately run the hairdryer setup. He may well never do that, but if he does, after possiblyfinding himself unhappy with the results of a normally-aspirated engine, he may have occasion to regret milling that block. That's all I was saying.
I was ignorant of the fact that this was not his first rodeo, so he may already be aware of the severe limitations of the breathing that exists with a normally-aspirated induction system, and be happy with that. Dunno; can't know what he will be thinking when it all comes together... but, if his methodology, now, precludes the possibility of bolting on some forced induction down the road, there may be a better way to so it...
Milling just the head, now (a LOT), and running a thin, shim-steel head gasket may get him sufficient compression (for this motor) without touching the block, I don't know, but it would be worth investigating, I would think, in view of the ultimate consequences.
Just my 2-cents...:blob:
