[Formulas]

You have pedal left? Not to beat a dead horse look down carb with somebody on the pedal make sure butterflys are fully open they could be binding also many have reported not so good results at WOT. with edelbrock AFB style carbs

Wouldnt hurt to try different components if you have another carb laying around

In the aircraft industry we called it swapolligy

[TAQuest]

Originally Posted by Formulas

You have pedal left? Not to beat a dead horse look down carb with somebody on the pedal make sure butterflys are fully open they could be binding also many have reported not so good results at WOT. with edelbrock AFB style carbs

Yes, I did that. The secondaries are opening. It pulls good at WOT through the gears but only up to 3200. You can hide the problem by shifting up. It's pretty quick if you keep shifting early. I can get to 60 mph but that's it.

[TAQuest]

Originally Posted by Formulas

You have pedal left? Not to beat a dead horse look down carb with somebody on the pedal make sure butterflys are fully open they could be binding also many have reported not so good results at WOT. with edelbrock AFB style carbs

Wouldnt hurt to try different components if you have another carb laying around

In the aircraft industry we called it swapolligy

I'm a swapper no doubt. I'm going to swap the carb and distributor. I've had bad carbs and distributors many times before and it's just not like that. It seems like the valves start to not work correctly at 3200. Like it has weak springs or something. Like they are bouncing already at 3200. These are preassembled edelbrock heads so it seems unlikely the springs are wrong.