Carb Power Valve

[Longhorn21]

I would like to hear from some of you that have a Ford 351 Winsor. What size power valve do you use in your carb's. I have a 65 and a 75 can't figure out which one to use

[beast 496]

both the 6.5 and the 7.5 are car style power valves. Way too lean for marine use. The most optimom is a 2.5 or 3.5. I regulary install the 2.5 for instant accelleration. Order from Holley or I believe you can also order individually from Summit. Al

[Longhorn21]

I ordered the rebuilt kit that Holley told me to. It was a marine 4160 kit and it had the 6.5 and 7.5 in it, are you telling me they gave me the wrong size. I gave Holley my list number and told me the 703-28 was the kit for that carb

[beast 496]

They sent you a basic rebuild kit. Each marinizer has their own specific jetting. ie Inmar, pcm, crusader. Order a 2.5 or a 3.5 and experiance the optimom accerleration. Al

[Longhorn21]

Thanks beast I'll give it a try