Questions about this 360LA combo?

to get into the 13s with a streeter takes a W/P (weight to power ratio) of about .075 to .084, so
@3400# raceweight
With a low-compression engine I'd target 3400x .084=286hp
With a high compression engine.. maybe 3400 x .075=255hp
Easy 360 targets.
That's 30hp difference and about 2 cam sizes right there.
On paper it looks like no big deal right?
In reality, when you put that big cam into your ~8/1 engine the pressure plummets, and below 3000rpm or so she turns into a marshmallow.
Here are some examples
First a plane-Jane stock 360, then up-cammed by 2wo sizes,ok
Scr 8.0/ Ica 56*/ Dcr 6.8/ psi132/ VP 118
Scr 8.0/ Ica 61*/ Dcr 6.5/ psi124/ VP 105
Check out the VPs; these are less than a stock 5.2Magnum(~124to 128), so you can expect the 360 to have less than 5.2 performance below 3000
Ok now lets pump the Compression up and still using the same two cams.
Scr 9.4/ Ica 56*/ Dcr 7.97/ psi163/ VP146
Scr 9.4/ Ica 61*/ Dcr 7.71/ psi156/ VP134
So lets analyze this;
On the street a VP of 134 is good; of 146 well that's where the fun starts

3.55s and the stock TC will get you 3000rpm @~26mph, in first gear (2.45ratio) and with 26.5 tires ... the more VP you have, the easier it is to initiate tirespin, and the easier it is to keep them spinning for longer. If you spend some money on your suspension to help it hook, the sooner you will be going faster.
Now consider how often, as a streeter, you will be at below 3000 rpm. 32mph is about 3700in low,2200 in second,1510 in Drive. 64 would be double.
So, imagine; here you are, idling along in traffic, 1500 in drive, and you want/need to accelerate briskly . With a VP of 105 and a stock TC, you got nothing, well maybe bit better than slanty-power. So you are gonna want to downshift, hit 2200 in second, and now you have sucked out Teener power, OK so you gotta mash it into first, and now at 3700 you got about stock 360 power.I guarantee you a VP of 105 with 3.55s sucks. Guaranteed.
Ok next, Mr Ellison recommended a 262 cam.. just right to get that 56* Ica, if speced out right. So you then have a choice of; stock 8/1 for a VP of 118, or 146 with 9.4Scr; or some in-between VP number with some lesser Scr.... Whadareyagonnadu?
The money you are gonna need to spend on bigger rear gears and a high stall, as you can see, is far, far better spent on pistons, and has a far far better return in the long run. IMO; I see zero benefit to an 8/1 360 streeter and up-camming; it just makes a bad situation worse.

Big VP is not necessary for to get into the 13s,
in fact it is easy to get too much VP, and overpower the tires in the 60ft; but VP of146 is not too much,lol. 175 is waaaaaaay too much. 165 is too much, 155 is about right with slicks.145 is about just right with street tires. I'm kindof guessing, seeing as how my car is rated around 165 at sealevel and just kills the tires, including 325/50-15 BFG-DRs, with street suspension. Yes with 3.55s, but with a manual trans.
read about VP here V/P Index Calculation
Happy HotRodding