It seems many guys in Brazil are making a lot of HP with there 250's & 292 inlines with the standard siamesed port cylinder head.
Boosted & making anywhere from 1000 HP to 1250 HP.
Stock crank,stock main caps,no main girdle & so-on.
Seems like they should just blow apart,but I think with these HP figures the stock bottom end is pretty stout for what it is.
Sure, you can improve them with aftermarket stuff.
Douglas is looking to get 1400 HP out of his 250 CI inline & set a new record,,,, for ET & HP,,,go Douglas go!!!
MBHD
