Absolute Speed heads are worth the wait. I have seen them out perform Stage II heads form other companies. I saw a Dyno with a 40HP improvement over another stage II head with the same size valves.
Absolute Speed heads are worth the wait. I have seen them out perform Stage II heads form other companies. I saw a Dyno with a 40HP improvement over another stage II head with the same size valves.
2002 ecsb
LS1
JPR stage I heads
218/224 529/536
AS&M Headers
Volant, Magnaflow Dual/Dual
SSF 3500 4.10
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