I have a friend who is having to get rid of his 71 stang (project car). He just had had the original block stroked to a 331 with all forged probe internals. It is still a flat tappet motor however. I have a 94 302 stock short block and was thinking of possibliy stroking it out. My question is would i be better buying the 331 (for $1500)from him and just using the parts i already have and converting it to a roller motor (if possible), leaving it a flat tappet camed motor (does come with flat cam), buying it for just the internals, or just stay away from it all together?