383/727 Value

It appears that I couldn't build the 360 (Core) that I already have for the same cost to get it to the 383 horsepower level. Not to mention, I'd have to build a SB 727 to handle the 360. Looks like I'm going back to the 383/727 plan.
I'd say the 383 plan would be worth the work and frustration, and TTI under chassis low deck headers would be worth the money for the outcome.