Originally Posted by hickory1969

Ok I'm looking for a lil help on this one from some of you guys. My son races a 84 K5 blazer in mud bogs. Weighs about 4,500lbs. Building new 383 for next year. Compression is in the 11.5 area and using Dart iron eagle platinum 200 heads.64cc 4.88 gears and Th350 with 2.75 planetary. Tires are 35.00x16.00x15.Boggers. I will be having a converter built for this truck. It needs a lot of low and mid range grunt to get this tank moving. Looking to run a hydraulic roller. Any suggestions? Also ultimately the intake will be a dart shp dual plane or dart single plane depending on the camshaft rpm range.