Im ready to buy a torque converter and need advice on what to get. 70 Chev, 383, dart heads 200/72cc, rpm manifold, edelbrock 750, TH 350, 12 bolt w/ 3.42 posi. Isky mega 274 cam with following specs.

Vendor Isky Racing Cams
Product Line Isky Oval Track Hydraulic Flat Tappet Camshafts
Cam Style Hydraulic flat tappet
Basic Operating RPM Range 2,200-6,500 RPM
Intake Duration 050 inch Lift 226
Exhaust Duration 050 inch Lift 226
Advertised Intake Duration 274
Advertised Exhaust Duration 274
Intake Valve Lift with Factory Rocker Arm Ratio 0.490
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.490
Lobe Separation (degrees) 108
Intake Valve Lash (in) 0.000
Exhaust Valve Lash (in) 0.000
Grind Number 274 Mega

How much street driving will you be doing and what is your tire size? Will you be running slicks at the track? If its mostly street, something along the lines of the TCI 11" Break a Way or the B&M Holeshot 2400 would work. If its just street, a TCI or B&M 12" would work. I listed these because they are in the Summit and Jegs cats at good prices. Any good brand in this range would run well.

No track time. Street only.

I'd go with the Holeshot 2400 especially for the street use.

Some say they are not so great, but I used one for 2 seasons ran 13.70's down to 12.60's in My Monte and it worked perfectly, sold it used and it is still going strong.

Should last a long time on the street. May not be able to chirp the tires when hitting second, but it will really pull when you mash the pedal and your motor hits 3000 RPM in a flash

id go with the holeshot 2400 as well.

ive got one in my biscayne, i drove the car everyday for a few years and i couldnt be happier.

Why do you say it won't chirp hitting second? I have a shift kit now in my th350( it chirps) and was thinking about the 2400 but the chirp is good stuff, Would I lose it?

I certainly wouldn't worry about losing a "chirp" on an upshift..its all in road condtions,tire type,how firm the tranny shifts,etc.
A higher stall will cushion the shift at or below the the flash rpm.
Sometimes on 1-2 shift,depending on how I'm driving,either there is no chirp (shifting @ 5500) or it goes sideways and lights the tires (shifting @ 4000-4400) or light throttle upshift at 3000-3500,it will just chirp.
Below 3K,you don't even really notice it shift,just a little nudge,and my TH400 has NO kit.

Sounds beautiful 4speed! tongue.gif