I bought the LT4 conversion kit about a month ago and I'm having the heads/intake ported. I changed plans and I've decided to go with a more aggressive nitrous grind cam for my application and I will have to install stronger springs, lifters, etc. I will be keeping the heads/intake/1.6 rr/gaskets. Everything else is included for the $225 - Hotcam, springs, retainers. If you're in PA, I travel from Altoona to Harrisburg often and will meet anywhere in between.