Building a Procharged 6.1

Looking to see how much is needed to cut off heads and block to to gain a point of compression on a 2006 gen3 6.1 hemi.

Any help is appreciated. Anything I should worry about? Just wanting to make a reliable bracket motor I can let my friends drive.

Measure what you have and do the math
I wouldn't raise the compression ratio unless it is less than 7.5 to 1 ratio or worse, I would use the blow off valve, valves, to control the HP based on boost
I am new to racing a supercharged motor so what do I know

I dont think they run the compression that low anymore

I would verify the actual, not factory specs,. true compression ratio that motor actually has and go from there. Aren't all the 6.1 Hemi 10.0 to 1 or more stock?
The last pump gas street Hemi motor I built for a customer had right at 9.3 to 1 true mechanical compression ratio, it had a Litlefield 10:71 roots blower on it with two Carb Shop built Dominatoer carbs that were around 1050 CFM at 28.5 inches. That motor 927 HP at 7300 RPM with CA pump swill at 7.5 lbs. of boost at 12.0 percent underdriven with 33 degrees total timing using a MSD 7AL2 ignition, we switch the pulleys which made it have 13 percent overdrive and we retarded the timing to 25 degrees BTDC total and swap to Union 76 race gas with 116 octane and that motor made 1027 HP at 6500 RPM with 12.0 lbs. boost before starting to detonate and miss
My point is that motor drove on the street a lot better than another pump gas blown Hemi motor for another customer that had less compression ratio and sped up the blower to make more power on the street.
Most street driving is around or under 2500 RPM in town at light part throttle so that makes the low RPM throttle response important

A centrifugal blower has minimal boost until higher RPM, compared to a Roots or axial type. The psi varies (roughly) with RPM^2: 5 psi @ 2,000 becomes 45 psi @ 6,000.
Without high stall (or a strong 1st gear) the car won't launch, and higher static CR will help, but what to do about spark at higher PSI level? MSD retard? Water injection? Be careful.
I'm going to try Snow on my turbo engine, now safe @ 17 psi, to see if leaner mixture or more spark will pick up some power.

The Alfa Romeo Giulia Quad has a 2.9L V6 with 9.3:1 CR and 35lbs of boost from the factory, just to show what they're doing these days. I haven't heard of anything boosted with compression down in the 7 range since the 90's. I believe even the turbo LS guys are 10.5:1

The Oem's have a bunch of other stuff to consider when they build a boosted motor that aren't as much of a concern on a performance or race motor. They can't build a motor designed with a compression ratio to maximize performance with a turbo on pump gas, it would never pass modern emission standards or mileage requirements, and most people wouldn't want to drive it.

I'm still trying to decide on what compression ratio to make my new crank driven supercharged EFI E85 B1-MC heads up no prep motor,
I'm debating between 10.5 to1 or 12.5 to 1
I'm hoping to make north of 2500 HP at or below 35 lbs. boost

Cutting .010 off the heads gains how much ? Same with the block ?

I bought cheeper icon pistons off eBay but there about 9-1. I want at least 10-1.

Cab is aim for around 11-1 on your deal.

Keep CR around 9.5:1 or it will be laggy on "off boost" driving. With aluminum heads, that will be no problem. I run that with 15 lbs of boost on pump gas, but only 17 degrees timing. With some race gas, I can increase timing (haven't tried that yet).

FBS63 is building one...

It's a small Procharger. It's max is 800HP
Had it on my SRT before they made hellcats. Sold the SRT to grow my business, but kept the Procharger. Found a doner car, having fun messing with new stuff. The SRT was 10.5-1. I'm looking for 10.

It will be in a 68 Road Runner. Bleep. Bleep!

You get around lag with proper gear and transmission setup. I road raced a 1.3 litre with a 72mm turbo using a close ratio dog box, lag was none existent.
Boost is compression you can cool without adding excess fuel to do it.

Is that one of those gen 3 hemi blocks?

Sure looks like one

Been piddling.