I'm trying to figure out the cheapest way for my TT set up for next year. I have 3 1968 302 Blocks, I would really like to have the New Boss Block or a Dart, but money is the issue. I have seen alot of people making insane HP and Torque using production blocks with the Hard Block cement, Steel Main Girdle and a Valley Girdle. Right now I don't know which way to go. I know production blocks have their limits, but this will be in a weekend car that see's the street very little and mostly an 1/8 mile car and few qtr mile passes every now and they. For those of you have had any experience with Hard Block let me know what you have seen and the pro's and con's of it would be.