Hi Guys
I 'am currently building a 383 stroker motor. This will go into a 89 T/A. I'am looking for info on cams used. Currently looking at TPIS ZZ9 or Slp #51010. Looking to get around 400Hp! The intake manifold is the eldbrock Tune port set up. Any Help/tips would be appreciated.

 

I'm running a LPE 74211 in my 383. It was designed by Lingenfelter specifically for a high-flow long-tube-runner set-up.
Has a good idle at 700 rpm. Builds great torque from idle to abt 5000 RPM. Great cam for the street.

Lift is .560" with 1.6 rockers. Factory heads will need valve guides trimmed to handle the lift. Requires ~400 lbs of valve-open spring-press so screw-in/pinned rocker studs are necessary.

 

the CORRECT answer to your question will depend on factors you failed to mention, like the engines cpr,head flow,your trans,type,your converters stall,speed and your rear gear ratio, why not call crane and crower with all the info and see what they recommend, its bound to be better info that a wild guess based on partial info.
you can easily reach 400 hp with the correctly matched components, but your very unlikely to reach it unless ALL THE COMPONENTS are designed to work togeather in the same rpm band and compression ratio, and the drive train also matches,ETC.

 

Update the 89 T/A is an auto car and will be upgrading the convertor, We are looking at TCI street fighter. The rear gear is currenetly stock. Asumming it's a 3.23 gear. The cyl heads are Afr 195cc heads with the up graded spring pkg. 68cc The Cr will be set around 9.8-10.1 The builders handling that. How ever he has not done any TPI Motors and doesn't now how have easy or difficult the programing will be. So This is open for input on duration/lift. The guy who owns the car knows that there are many other drive train/suspension modes that will have to be done. This is the start to many smiles and or f---ss as it hauls a-- and things break. Thanks for setten it straigh grumpyvette!