Hey guys thanks for all the input, this thread seems to have gotten a bit heated, as opinions differ on the pros and cons of the non roller block conversion, to that I say to each his own . I.E if one were to have a non roller block laying around it might be worth the investment of the $$ to buy the set up instead of buying a used roller block from the yard, for me it would make more sense to just go ahead and get a complete 351w roller block and be done with it, though the early blocks are stronger, Im just looking to get 400/425 RWHP and run it carbed. Bottom line is I purchased this car in '02 with the plan to modify it and use it only on weekends or when hanging out with our Stang club, but $$ problems due to injuries and other BS in life, have hampered and altered our plans, BUT Im still going to finish this project one way or another, If I can't swing the $ for retro roller kits, my thinking is get a roller block, if I can't afford to keep it fuel inj. I'll run it carbed, sell my HCI and the other stuff to get the $$ together to make it happen, follow through, get it doneamnit: I really value the opinions of everybody on this site you folks are the best and always help out no matter if it's something simple stupid, or brain cramping hard. I used to think I was a pretty fart smeller till I got here, I still learn something new everytime I log on