I have a 355/th350(shift kit)/2.73 10 bolt open:
4 valve relief hyper flat tops (9.75:1)
WP S/R Torquer heads 67cc chambers, 170cc flow
comp 270 hydrolic flat tappet cam (224* I&E, .470" I&E)
1.52 stamped roller rockers
flotech headers
edelbrock performer intake (non air gap)
demon jr. 625 cfm
160* T-stat
cherry bomb turbo 2 mufflers 2-1/4"
what kind of power am I making and what kind of quarter mile times could you guys expect my car to run with stock weight and 265-60-15 tires. how much of a differance will I see if I switch to a 3.42 or 3.73 gearset? I'm trying to evaluate what will be the most cost effective modifications for this summer ie. electric fan, gears, posi, converter, cowl hood, or any suggestions are also appreciated.
Thanks again guys. graemlins/thumbsup.gif graemlins/beers.gif

356 HP @ 5500 RPM, 395 FT lbs @ 4000 RPM
makes 373 ft lbs at 2000 rpm and pulls to the peak at 4000 then starts to fall off again at
4500rpm (388 ft lb) This is with comp 270h, 9.75:1 comp. sr torquer heads, headers,dual plane intake, 675 cfm 4bbl. I am by far no expert with this software and I used some numbers that were downloaded for the cam & heads so this may not be very accurate but should be close, Hopefully someone else who uses this more will chime in and we can have something to compare it to.

turbo.....what software are you using?

desktop dyno 2000

Originally posted by turbo:
356 HP @ 5500 RPM, 395 FT lbs @ 4000 RPM
makes 373 ft lbs at 2000 rpm and pulls to the peak at 4000 then starts to fall off again at
4500rpm (388 ft lb) This is with comp 270h, 9.75:1 comp. sr torquer heads, headers,dual plane intake, 675 cfm 4bbl. I am by far no expert with this software and I used some numbers that were downloaded for the cam & heads so this may not be very accurate but should be close, Hopefully someone else who uses this more will chime in and we can have something to compare it to. today (wednesday) I happened along the Dyno 2000 on the net free and came up with 386 hp @5500 and 414 lb.ft. at 4000 thanks for your time and #s graemlins/thumbsup.gif

Originally posted by young gun '71:
today (wednesday) I happened along the Dyno 2000 on the net free ..care to share where You found that? smile.gif

RPM···········1500····2000····2500····3000····3500 ····4000····4500····5000····5500····6000
Brake_Tq······200·····264·····313·····351·····362· ····367·····356·····336·····303·····255
Brake_HP······57.1····100·····149·····201·····241· ····279·····305·····320·····318·····291
Exh_Pres······.1······.3······.5······.8······1.2· ····1.7·····2.1·····2.5·····2.8·····3.0
Int_Vacuum····0.0·····.1······.1······.2······.3·· ····.4······.6······.7······.8······.8
Vol_Eff_%·····58.5····67.6····75.5····82.4····86.1 ····89.1····89.9····89.4····87.1····82.7
Actual_CFM····97.1····149·····209·····273·····333· ····394·····448·····494·····530·····549
Fuel_Flow·····35.5····54.6····76.2····99.9····122· ····144·····164·····181·····194·····201
A/F_Mix_Qal···83.7····95.6····98.5····100.0···100.0· ··100.0···100.0···100.0···100.0···100.0
BSFC··········.622····.544····.512····.498····.505 ····.516····.536····.565····.610····.689
BSAC··········7.798···6.826···6.424···6.250···6.34 0···6.467···6.719···7.082···7.646···8.638
Friction_HP···12······19······29······40······53·· ····70······90······115·····143·····176
Mach_#········.140····.187····.234····.280····.327 ····.374····.420····.467····.514····.561
Piston_Spd····870·····1160····1450····1740····2030 ····2320····2610····2900····3190····3480
Piston_Gs·····145·····258·····403·····581·····790· ····1032····1306····1613····1952····2323
Overlap_%VE···-2.7····-2.5····-2.0····-1.4····-1.5····-1.1····-.9·····-.9·····-1.0····-1.1
Int_AvgVel····95······127·····159·····191·····223· ····254·····286·····318·····350·····382
In_InertiaPrs·.0······.4······.8······1.4·····1.8· ····2.0·····2.1·····2.0·····1.7·····1.5
In_ResTunPrs··0.0·····0.0·····0.0·····0.0·····0.0· ····0.0·····0.0·····0.0·····0.0·····0.0
Ex_AvgVel·····101·····134·····168·····201·····235· ····268·····302·····335·····369·····402
ExTun_Prs·····.5······.7······.5······-.2·····-.2·····-1.0····-1.6····-1.8····-1.7····-1.3
Lifter_Pump_UpNone····None····None····None····None ····None····None····None····None····None
Spark_Adv·····25······25······25······25······29·· ····30······31······31······33······34

In a 3800# car
2.73 open on 26" street tires - 14.04 @ 100.07
With a 3.73 posi - 13.48 @ 100.68

Originally posted by mr 4 speed:
</font><blockquote>quote:</font><hr />Originally posted by young gun '71:
today (wednesday) I happened along the Dyno 2000 on the net free ..care to share where You found that? smile.gif </font>[/QUOTE]I really wish I could... all I know is some one on here had it.I'll see if I can find it though. graemlins/clonk.gif
thanks onovakind67. graemlins/thumbsup.gif