fcrotornut

so a question for you , i have a holley 600 for a 6 port 13b that i bought from racing beat,that ran great for awhile there, until i went to install a heat shield, i broke the ear off the base plate and could only fidn a baseplate for a holley 650.

it was all machined properly to match up with the one sent by racing beat, i even bored out the bottom of the carb to match up with the eight of an inch difference with the baseplate.

however i did not match the manifold port size.

i hooked it up again and it ran really shaky for about 2 days, would hold a rough rought shaky idle at 1.2k

i went out for a nice drive in the cold winter air for a night, parked it, went out hte next morning to get to work, cranked it over, it shaked and stuttered through every rpm while cranking qnd would not hold an idle unless i held my foot on the accelerator, and after a few moments of that, it would drop idle and stall with my foot still holding the accelrator down.

FB II

how hard is it to crank up? one thing you may need to do is take off the primary metering plate and carb clean it, then blast compressed air thru all the orifices. alot of times a tiny bit of junk gets caught up in there and will destroy the fuel metering process. aaaaand, how are the gaskets between the float bowl, plate, main body, etc... they gotta be in awesome shape or it makes a difference on the holley's.