460 tunnel ram carb help

« **on:** June 05, 2017, 08:58:46 PM »

My Marlin has a 460 tunnel ram in it.with Holley 450 on top.has 50 cc pumps on each carb.looking at replacing with new 450 tunnel ram carbs.but they come with 30 cc pumps in them.my motor does not big or studder .just goes.whats your thoughts on running 30 cc pumps.and what about a choke on one carb.gets a little old waiting for it to stay idling to get off trailer.why does tunnel ram carbs have no choke.thanks guys

« **Reply #1 on:** June 11, 2017, 12:34:14 PM »

If you change your carbs, then you'll be back at the drawing board for rejetting your new carbs for the engine. 30cc or 50cc pumps can essentially be accommodated in the carb tuning. You might consider starting the new carbs with the baseline settings of the current carbs. Lastly, if what you have is working well then why change it? You could just rebuild your current carbs.

« **Reply #2 on:** June 13, 2017, 08:05:12 PM »

Problem is that's it rich all the way around.paint inside the carbs.takes forever to barely get it to idle .would love to put a choke on one carb but not a good idea.would just like to start with two fresh new carbs

Fkboatman

460 tunnel ram carb help

LakesOnly

Re: 460 tunnel ram carb help

Fkboatman

Re: 460 tunnel ram carb help