My old (1980's) 446cid 6bbl STR 14-6, VS outboard highly modified carbs
IIRC 0.590" Purpleshaft FL tappet, with 1.6:1 (0.629 gvl) w/Super Gold Cranes,
ported 68 iron Bill Stammerjohn heads 906s, like 280cfm (?), with 90cc chambers
Venolia 12:1 domed, shaved a bit & valve relieved a tad more pistons,
to be like 11+:1 with a 0.039-0.040" dead-soft solid copper gaskets,
it would mile an hr pretty damn well, with 29x9.5 Hoosiers D2's, 4.30:1
in my old Yella' 69 RR
back in the early 80's street racing, 11.40's no juice, w/23 spline 4 speed car (& it lived)
(
I ran M/T N50/15 Sportsman's sticky street DOTs for a while, 12.61 was my best pass IIRC,
slicks were way better & way faster, launch more RPM like 3,500)
after N2O 10.70's mid 123+ or minus 2mph Fremont or Sacramento (IIRC)
with a Top Gun '2bbl plate kit, their 250 jets, it was more like 175hp kit with juice/N2O
& 1/2" spacers under the outboard carbs, holley blue pump & dedicated red pump for the N2O
Holley bypass reg./s, flowing at 5psi (
N2O) & flowing rate of 7psi to the Carbs
on shot-peened LY rods, good ARP bolts, Childs & Albert tri-metal bearings
& stock forged crank, polished & balanced, with ARP studs on the bottom-end & heads
it was too much gear for it, 7,200rpm at the stripe if it hooked well on juice
like 6,800rpm without N2O, good Hayes Clutch, BorgWarner style IIRC
It was a fun car, I wasn't beat very often on the street
quick for what it was & it was street driven almost every week
from Concord Ca. to, Fairfield, even to Sacramento area
or bay area cities like Cupertino South Bay, SanJose
or north to Sebastopol or Rohnert Park
or SF & Oakland, Richmond, Berkeley & El Cerrito were all hot spots
so was Sacramento out in front of Rancho Secco Nuke plant, was a hit
so was Pittsburg on 10th street in front of the PG&E power plant,
some hairy wrecks out there, some serious faster cars too
or in front of Antioch PG&E plant too
But best was cruise nights, Fri. Sat & sometimes Sun. in Walnut Creek
Main St. Locust loop & then out to Encino Grande Safeway 'to bench race'
meet up the bros. on the corner of Concord Blvd & Willow Pass
& get street races going, until all hrs of the night (
right behind my house)
could see it off my rear deck, on Ignacio Valley rd. both ways
or Willow Pass rd. Concord for the slower cars just outside of the
Encino Grande Safeway parking lot, people from all over, came there
between Concord & Walnut Creek, fast cars for the time, for 10+ years
I drove it sometime even to work, when I didn't have to carry any materials
to spice up my commute
sorry for the shot book just reminiscing
while still building it, 1981-82ish, didn't have juice until like 1985ish
not mine but one of these outboard kits
not mine but something like this down on the intake inlets
