Hard Starting Cold or Warm

darimont said:
PlayDate,
Which cfm are you using? The adapter thing doesn't bother me. I may do this change before the begining of next season.

Dan

Dan,

I used new 800 cfm carbs on each 7.4 engine. I kept the factory secondary jets on both of them and switched the starboard primaries to 74 and kept the port primaries at 72 (factory) after looking at the plugs.

That's the really nice thing about them is that you can tune them for your engine. The power valves, accelerator pumps and squirters are all factory.

I also opted for the bigger holley spark arrestor. Beyond that, I put on a fuel rail that had a fuel pressure gauge on it just to make sure the fuel pressure was constant.

You won't be disappointed with the upgrade.

-John
 

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