Retune my entire carb after installing new heads?

Hysteric said
And you wonder why some engines make more torque than others........So put a bigger carb on and then complain it doesn't make any torque down low so now you need a big stall to get it to launch........

What you say comes across that smaller carb, head etc.. always equals better. I'm Not saying opposite is always true either.

Generally the engines putting out higher lbs-ft per cid run big cams, carbs, heads etc.. very built race car engines. Not stock very restrictive engines even at very low rpms.

Hysteric said
Its easier to put a smaller carb on to fix a problem than spend hours posting on forums searching for a solution to a problem you created. How much time has this guy spent changing TSR's to get the transfer working right.......The whole point of running a smaller carb is a smaller throttle bore increases vacuum to aid the idle and transfer circuit to do its job effectively and properly ie condition the cylinder to take on WOT mixture correctly. Remember my statement from a previous thread:

Yes it's possible a smaller carb maybe better for the OP, but it's no guaranteed fix and there's no reason why the one he's running won't work even if it ain't optimal which only though testing a bunch of carbs we'd find out, so we will probably never know and the gain probably not worth buying another carb anyways.

Hysteric said
Engines with lack bottom end power?

Less firing events equates to less force transferred to the crank does it not? So the quality of those firing events becomes critical in the torque generated does it not?

Its the efficiency of each firing event all the way through the entire rev range that accelerates the car not just the top end. The most critical is the low speed running circuits BECAUSE they set the stage for HOW the cylinder fires. So Mark Campbell fixes the low speed running on a Prostock car and the car goes FASTER. Did the car now ingest more air to make more power or did just do it more efficiently? If you're loading up plugs and creating a less than ideal cylinder condition then when you introduce the mains fuel its gonna take a long time to get back up to peak efficiency before it can make peak power.

Yes in theory were only talking hundreds of power strokes per race. But not everyone has an Prostock budget to R&D the best possible combination.

It's only a guess, your educated guess that a smaller carb will at least fix and or be an all around improvement and would that improvement be worth spending hundreds of $$ to the OP? Maybe we should start with what he's got and go from there.

Engines with lack bottom end power?​

Engines with lack bottom end power?