""Are your heads ported? I see you had to jet down to 62 in the front? seems like a lot""

I finished the season with 63's in the primary (.039 HSAB's) and 78 (driver) and 76 (passenger) side secondary jetting (.036 HSAB's).
Mine came stock with 68's on the primary & 82's on the secondary (.033 HSAB's all around) which were WAY TOO RICH for my setup. I had black smoke right out of the box.

Looking back over the last 2 years with my O2 sensors, I think that the biggest tuning change on this carb was the combination of the jetting and the HSAB changes. Once I leaned these out, my A/F numbers started looking good.

Note: My heads were only bowl blended.

How soon will you have the carb running on the engine?


1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)