Originally Posted By: Twisted6 I.I #3220
 Originally Posted By: oliver65
So i tried a holley 600 on my 250 would idle but not run bogged and died so........ I ordered a holley 390 and some full length headers gonna put them on this weekend. Any advice you guys gould give?


Was the carb working like it should???I have ran a 600 on my Stock 250 and never had any issues with it. And i ran it for many yrs on a mildly built 250 (just a RV cam).Then I used it for a vary short time on my well warmed Over 250, Before going to my dual cliford with dual 450s Then to my 3x4 tunnle ram.

So If it was me I'd make sure the carb was in top shape before spending the money on another carb.

PS and I never had any type Of heat Other then the heat comming off the headers.Even in 40 deg. Fla weather.



to be honest i put the carb on wich is a summit 600cfm and set the floats and thats it. I have never tried to tune a carb before I guess I have always been lucky bolted them on and they worked. All of my experiance has been in sbc's this is my first inliner.