How about this set-up in 81 Bu?

[Black Mamba]

*** 227/233 @ 50 560/560 Howards Hyd Roller Cam 110 centerline ***
*** AFR 190's 2.02 1.60 ***
*** Edelbrock Performer RPM Intake ***
*** 9913 Icon Pistons *** about 9.90 compression ratio
*** Scat forged I Beam 5.7 Rods ***
*** Scat 4340 Crankshaft ***
*** 1 5/8 Headers ***
*** 1.5 3/8 Roller Rockers ***
*** 8.5 3.42 rear end ***
*** Turbo 350/3200-3500 stall ***

True street with some NMCA/Local track time about 6 times a year

 

[bowtie81]

With a set of 3.73 or 4.10's it would work super

 

[bracketchev1221]

Similar to my car right now. I would just upgrade to 7/16" rockers. Mine is a 355, 10.3-1 SRP piston, 7/16 Scat I beam Rods, Eagle 4340 crank, AFR 195 heads, .535/.550 231/239 hydro roller. Performer Rpm, 650, 1 5/8 headers, 4 speed and 4.10 gears.

 

[Black Mamba]

Thanks for the feeback guys! So 3.73 gears would wake this combo up more? 7/16" rocker upgrade. What is the benefit to this upgrade? I'm interested. Nice vehicles bracketchev1221! Is the Nova the car your speaking of with the similiar combo?
Thanks,
Kino

 

[bracketchev1221]

Yes, the motor is in the Nova.

7/16 rockers are usually the same price as 3/8". It just eliminates any flex in the rocker stud that could reduce lift at the valve. I used the harland sharps on mine.

 

[lilbowtie]

Nice combo I'll be interested i what she runs. Not to undermind Bracketchevy, as long as you have good studs I wouldn't be concerned about 3/8 right now cause you won't be turning it that hard - if anything put a girdle on it. Report back.

 

[Black Mamba]

Thanks. I have to get a couple of small parts, then its' getting put 2 gether. I'll keep u posted!