Check out my mods, its on a SD 305 TPI

COMPETITION CAMS CAMSHAFT SPECIFICATION SHEET

PART # 08-304-8
GRIND NUMBER: CS 266H-R14
ENGINE:CHEVY SM BLK 305-350
GROSS VALVE LIFT .500 .510
.006 TAPPET LIFT 266 276
VALVE TIMING OPEN CLOSE
AT .050 INT 5-BTDC 35 ABDC
EXH 48 BBDC 8-ATDC
THESE SPECS ARE FOR CAM INSTALLED
AT 110 INTAKE CENTER LINE
INTAKE EXHAUST
DURATION AT .050 210 220
LOBE LIFT .3330 .3400
LOBE SEPARATION 114

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'92 Formula
305 TPI 5speed
1LE package
Mods: SLP headers,SLP catback,SLP air foil,ported plenum,Crane AFPR (47psi),MSD6AL,AC delco cold plugs, Bosch O2sensor, homemade cold air,K&Ns,3:73s,JET fan switch, Macewen white face gauges

 

depends on what you're doing with it. for the street i think i'd look at something smaller. also depends on what you're doing to it in the future.

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-=ICON MOTORSPORTS=-
1st & 3rd

 

The cam will be the last mod (with the prom of course). Theres a guy on this board with similar mods to me that put this cam on and gained 5tenths on his 305.

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'92 Formula
305 TPI 5speed
1LE package
Mods: SLP headers,SLP catback,SLP air foil,ported plenum,Crane AFPR (47psi),MSD6AL,AC delco cold plugs, Bosch O2sensor, homemade cold air,K&Ns,3:73s,JET fan switch, Macewen white face gauges