Originally Posted by chevynovaman
my pump gas 383 went 11.80's with a 557 flat tappet cam, you should be in the tens easily with a brake,, your cam seems like it has alot of lift for the duration and lower compression.. I'll trade ya engines! lol
X2 on the cam, i think i would take the 1.6 rockers off and go with the 1.5's. Case in point, i have a .668/.660 @ 106 LS installed @ 102 in my 377" motor, in my friends 1800 lb dragster it ran 5.15 and 8.23 @ 158 on alcohol. Same motor in my 3250 Malibu, i could only run 6.52 and 10.59 @ 125, just not enough torque for the weight. I ran better with a .597 flat tappet cam 106 LS with a 406" same as your's except with 12.5 pistons with an 850 DP. Best 60' 1.39 with 14X32 GY's. I could be wrong, so maybe run the car first then try some 1.5 rockers to get the lift down.
JMO
Zip.