The sts 30 bump start fits nicely. I havent run it much yet. Its had a stage 5 mod.Iam trying to sort out a pipe for it. I have an 086,2035,2060,jp3. I have read you need an sts pipe to match the timing but iam not going to buy one. Iam planning to try out the jp3 and 086 tommorow if the rain lets up. I no the sts 30 can make great power but quality can be a issue.