Here are the mods in my 94' camaro z-28. Any estimated 1/4 mile times/speeds at sea level?........HP??

383 stroker built using a scat cast steel crank, H-Beam rods with a fully balanced rotating assembly and keith black pistons
Pace performance full exhaust system (3 inch with shorty headers)
Cam with a 280 intake duration at .443 lift
sub frame connectors
new clutch(6 speed)
new p245 sport tires

(assume good driving, 80 degree weather(ORLANDO), and generally good track conditions and stock weight with 140 pound driver)

 

it all just depends. i have seen them run anywhere from low 11's -
high 13's NA. that cam does seem VERY small for a 383 much less a LT1 383.

.440 is way too small. with a 383 LT1 i wouldnt go any less than a .500-.510 cam (and that would be considered very mild)

 

Whats the car weight??
On Slicks?? DR's?? ST's
HEads get redone ?? what they flow ??
matched and or ported intake??
MAss air work ??

YEs a 383 could use a lil more cam CC 306 min (unless your worried bout emmisions)

Gonna get a PCM program??

If you get all the above to the good, I'd expect round 11.60's or so on DR's @ 3650 lbs

 

Take my word for it, the cam is way too small, 280 duration with 440 lift may work in a 305, but in a 383 it will seem like some piddly RV cam. The 230/236 XE cam is nice, the GM 847 is nice , had both of these in my 383 and they ran pretty good, I had the 224/230 XE in when I first built the motor and it was way undersized.