so i finally got my tx-19 from texas and it wont idle.I know that the elevation has something to do with it and the air in texas is different than the air in san diego.Can any body tell me if i need to richen or lean it out,or if i need to change the jetting,timing or?
?? it has 2 750 holleys on a weind tunnel ram
Rich/lean is going to be a tune issue from speed. Not idling, is it stalling out or a very high idle? (Either way probably related)
Depending on what carbs, could be dirt clogging the idle circuit, improperly setup throttle linkages and/or cables, Fuel pressure, a host of other things. Timing should be checked first, as I've seen ,with some others on the site, some really crazy $hit with timing issues. One boat even had the firing order wrong.
Personally, if it stalls out, I'd be looking hard for a vacuum leak first and foremost. Your Weiand Tunnel is a two piece deal, and I've seen vacuum leaks at the gaskets where the carb base meets the intake, even warped ones as it's easy to over tighten the attachment nuts. Warped throttle plates, warped metering blocks and fuel bowls on the carbs.......I could go on and on. Get a can or two of WD40 and start spraying it around with the tube strategically while its running listening for a slight increase in RPM. You will have ID'd a leak there. Keep going. If you find one, you will find several as either many gaskets have failed, or Bam-Bam tightened all the bolts on the thing.
Good luck!

Hopefully it's something minor such as a gasket or two and not requiring parts and machining to fix.
Ray