Okay, I tried to search, but so much comes up and I couldn't find the answer to my question. So..... Hot Cams has a auto decompression exhaust cam specifically for the 450, and one specifically for the 400-426. Will the 450 one work? They have different part numbers. I thought I read that before they had the auto decompression cam listed for the 426, people were using the 450 one. Also, will the intake cam from the 450 work on the 426? Sorry if I'm beating a dead horse.