Without a doubt if you give Dean your specs you will get a good running carb. When I put a B&M 250 on my 502 I had him put everything that I would need in a box, head gaskets, cam, lifters, rockers etc. Sent him my carb and they all passed each other in shipping. Put my engine together, hooked up the fuel and set the idle. That was it. Perfect plugs all across the range. Money well spent. Yes you could probably fiddle fart around and get it right. I had done that in the past and 72 plugs later it was OK but the money spent was worth it.

Tim T.

Ya still have the Nova. It is cheapest to keep it but I would sell it to the right person :D that really wanted it.
Well I did CAM, full port and polish 502 heads, intake, carb, and exhaust to my 330 hp motor.
Rag's

Very nice, Rags! That ought to give the Nova a little more attitude ;)

Thanks for the input BadDog. I just might go that route. Life {and boating season} is too short to be messing around.

Wouldn't it be easier to forget "J" tubes and just run a hose from vent to vent with a hole carved in the top of the hose secured by the air cleaner stud? That will eliminate a neg pressure in the pri/sec bowls.

Roby

Just putting "J" tubes in the carburetor does not make it USCG legal. There are changes that need to be made to the throttle shafts. As far as the tuning goes, it's not just a jet change. Since the pressure will be different in the float bowls then what the carburetor was designed to work with the Air bleeds, and in some cases the emulsion circuitry needs to be changed to get the proper amount of fuel to the engine at wide open throttle.

Looks like I'll be giving Nickerson a call this week.

Thanks everyone. I appreciate the input.

Just buy the 800 Holley Merc uses should be some used ones around if you look put in a halon to be safe.Car carbs tend to be a little lean at midrange in boats. What cam are you using you may have reverson issues with the one that comes in that eng.

Boxed up the carb and shipped it to Nickersons today.

BadDog, when they sent your carb back, did they include anything indicating what they did to it?


Thanks again everyone for the advice.

Bill

Buy fuel injection.... its easier than f*cking around with carbs