Summit HEI upgrade kit

[natedogg]

Thanks for any and all replies. I have learned so much from the great info here. I want to upgrade the HEI in my 85. Truck has the original numbers matching 305 with Edelbrock intake and carb. Everything else is stock. When the truck is sitting still ideling there is a slight stumble in the exhaust note. I'm thinking the kit will solve this? Other than that the truck runs really good. Has anyone used this kit or something similar? Do I need all of the kit?

http://www.summitracing.com/parts/su...olet/model/c10