I Go along with DjD;s concept...and basically have done so
A car ex factory is designed for wide range of driving styles
As is a street strip..
What you are looking for is like I have done tp my 350....something 100% your style.
Your approach BEFORE building is right on the mark
U need a cam that is all bottom end a power range 1200 to 4000 to 5000
Low duration/overlap, slow ramps and advanced 2 degs
heads like the old powerpcks that have smaller runners.
A set of cast rams horns, GM hei, and small carb a 450 or 500 cfm holley on a performer dual plane
Rear end 308 on 14" rims
Trans a 4 speed auto...manual for faily is cool at 1st but u will soon get sick of it..so go for a 4 speed auto...or at least a 350 with low torque conveter..a 2500 works well
This will give u a car that is basically what we call over here a "stump puller" All the power is in the range of 30 mph to 100+ mph cruise. And it will spin the tyres without full throttle and still run low 14s in drive.
Now If you wabt to get REAL SERIUOS go LPG..I did and have for the last 20 odd yrs
350 basically a blower cam high lift just over .500 with slow ramps between 4000 and 6000 rpm range and installed 2 deg advanced
Early small chamber 327 202 camelheads
A 'L' or "E" impco converter with 425 mixer (carb) on a holley 450 cfm baseplate on a permformer dual plane
The "L" or "E" converter try to get the obsolete front plate with EC1 opition
ACL flat top pistons
Colder spark plugs (2 steps down from stock)
160 thermostat and have the stock radiator headers removed and cores manually cleaned
308 diff 15" wheels
Trans as above...thu 14" wheels preferably for a 4 or 5 speed.
Dizzy Cent curve all in about 2500 to 2800 rom @ 30 to 33 deg and vac advance about 4 or 5deg working between approx 9 and 14 degs
This basic combo strts to lean out about mid 4000 rpms and not a good idea to run from 5 mins or so at over high rpms...but then how often with u be cruising at 120/120 mph?
With the high octane 105/110cheap fuel with high compression I pull high 13s in drive thru a 350 trans and 308 diff
Im now running highway about 30 mpg and round town 26/28, and towing one of my vintage cars on the trailer about 28 mpg
Im running cheaper and faster than a modern 3.8 v6 GM with computers fuelinjection and all the whizz bang stuff, and better emissions.
Best place world wide for LPG info
Forget that slightly smallish gap in interesection traffic on a damp road..u go nowere
Forget 1/4 / 1/3 fast throttle on a damp road, the rear end lets loose at 40 mph
Normal take off ones head bends back..slightly more than normal the rear wheels chip
I have a 80L tank in the trunk tucked right back...still heaps of room plus spare tyre
But refill on the open road about every 130 miles...get used to this , one tends to see those things on a trip one always says "must stop there one day" and never do.
DjD is right on the mark..it is all about getting ALL..every drop of the torque/power down into the rpm range u will be using..be it a daily economic driver or a strip /circuit car