WASyL

i made some research but i'm not quite sure if may conclusions are right.

im running 383 HSR with 30th injectors, edelbrock performer 60859 heads and CompCams cam spec:

Basic Operating RPM Range: 1,800-5,800
Duration at 050 inch Lift: 224 int./230 exh.
Advertised Duration: 276 int./281 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.503 int./0.510 exh. lift
Lobe Separation (degrees): 112

tranny is 700r4 with B&M TransPak

which stall should choose ?? 1800 as teh beginning of operating range or bigger ??

I H8 WWD

iTrader: (5)

Are you street driving this? Track only? Both?

Atilla the Fun

With your combo, I'd say you have enough low-end torque that a 3000 stall would be looser than you need, I'd start with a 2400-2500.

irishhockey34

iTrader: (12)

What he said.

AlkyIROC

For street/strip, you want a stall about 500 rpm past the beginning of the power band. 1800 + 500 = 2300. 2500 will probably still work fine based on the advertised duration. I wouldn't recommend going over 3000 rpm.

For all out race, 1000 rpm over where the powerband starts.

WASyL

as we do not have dragstrips in poland this is mostly street car, so ill try with 2300, thanks for help