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If it has good compression (do a compression check), then it is probably just valve seals/guides.I'd freshen up the heads, swap in a bigger cam/valve spring/rockers)package and get it dyno tuned.You should be knocking on 400 (crank hp) door then.
If it has good compression (do a compression check), then it is probably just valve seals/guides.
I'd freshen up the heads, swap in a bigger cam/valve spring/rockers)package and get it dyno tuned.
You should be knocking on 400 (crank hp) door then.