I am kinda having a tough decision to make. I want to take the next step on my truck. IE... . ported/o-ringed head, twins, billet dtt parts and alot of the other bells and whistles that come with those upgrades. Kinda big bucks for some more power. I have a 73 340 4 speed cuda that I bought 13 years ago that I have done nothing with in that time. I get the itch to dump a little cash into the cuda every now and then. What would you do? I may save the cuda for me and my son to rebuild... ... ... ... . but he is only 3 1/2, so I have time on my side! It is a tough decision for me. My truck has plenty of power but it would be awsome to have twins... ... .