like I said in my first post the base was $6495 and was built by one of the people you mentioned , I could have stayed at that price and got about 475/475 or so but I spent an extra $400 on porting for an extra 50/50 and while paying more doesn't guarantee better paying too little does means getting less every time, there are no free rides in the world of performance ,when I was ready to make the move from 318 to stroker I called and talked to everybody I could , got references as to who really stands behind their product and who's products stand up , it took me almost a year to figure it out but that just put more money in my engine fund , do your homework and then make the call but as I said if you think your going to get a long lasting daily driven stroker for $3500 ......good luck to ya !