all good points on numbers stuff jerry. i do spend some time talking about this to the customer if they do want a block thats not numbers that fine .BUT some guys want there number engines and i do not spend more time on this as then needed or tell the guy thats wants the number engine built up not to do it. i see it no sense pissing a guy off and spending his money to the find the guy thats will build his number block has for the chevy in chevy . chevy in the pontiac deal well i have one and the next guy wants it back to stock has abit of work in front of him as the car was not pass warranty before the 389 pack it up then a 400 did not fair much better . so the l88 427 was not a option on the gto but did fit fine dad had it this way it s goning to stay this way till they throw dirt on me