Originally Posted by fla1976
I am new to blowers and I am looking for information on how to set up carbs to use on a 6-71. It currently has a couple Holley 600's on top and it seems to be running very rich. I think the carbs are flowing all barrels at an idle. Should the power valves be changed? This is a 355 cid with a B&M blower.
Thanks. fla1976
I would get rid of the 600s they are not enough cfm you need to go with 750's, also you need to ck engine vac wot to size PV you do not need PV it is only an option, street/strip or strictly strip. Tell me what your timing is total, and plug gap, so you know I run a 71 Nova 355 w/ 871 weiand.
High 9s 135 mph 60ft 1.210
Also what are percent are you at your pulleys o/u? I went thru hell just to get down the track after I finished my motor but it takes time and tunning, hope anything I said helps