| 4A Heads Work in progress |
STOCK 4 A's FLOW #'s |
SEAT work on Kwik Way 020 Seat and Guide Machine |
J&S Stage II FLOW #'s |
S/S High performance Valves - 2.07 x 1.625 |
| Machine work in progress-New exhaust seats with a 1.500 ID .notice the amount of material needing to be machined from the stock ex. bowls!!! |
| The before and after #'s show Almost 50 CFM increase on BOTH intake and exhaust ports |
| Stock 4A bowls Will NOT move enough air to help performance !!!!!!!!! |